You seem to have given the Succubus (and the Shivarra) a “regular” (in the sense that it is not a resource consuming auto-castable ability you can click on and off) auto attack which she does not have on live. Is this a bug? If not, is there any possibility the Imps will get a similar ability since they are now the only pet that doesn't have one?
Yes, this is intended for the Succubus, but we don’t currently have plans for the Imp to get an auto attack. The Imp is intended to stay a pure long range caster.

I have a question about Mastery: Master Demonology and Metamorphosis. This ability gives X% damage bonus in caster form and Y% damage bonus in demon form. The tool tips (which could certainly be wrong and in any case they are somewhat ambiguous even if they are right) imply that when you switch from caster to demon form you KEEP your caster bonus and the demon form bonus is added on top of it. However, when I compare Soul Fire damage (since that ability is available in both forms) with and without Metamorphosis it seems low, as if I was actually LOSING the caster form bonus when I went into Metamorphosis. Regardless of whether the game and/or tool tips are broken, can you tell us if you intend for the caster from bonus to stay or be dropped when you use Metamorphosis?
Master Demonologist’s damage buffs are exclusive between caster and Metamorphosis forms. The amount shown in the tooltip is the total benefit you get from mastery in that form.

3% is huge. If you don't think people are going to drain twist for 3% damage you're crazy.
This is a common phenomenon where players may try to execute a very challenging rotation for a small DPS upgrade and find they do less damage than if they just stuck with the simpler rotation. We like to leave a little bit of room for very skillful players to try their hand at maximizing damage. The huge delta in damage on the same fights should suggest that player skill is still one of the most important components to DPS. Nonetheless, we can probably bring down the theoretical gain to 1% or lower.

As part of my work on SimulationCraft I've been trying to determine exactly how the dot-speedup mechanic of Malefic Grasp and Drain Soul works, and I've decided the way it currently works must be a bug:http://us.battle.net/wow/en/forum/topic/5633977563
We’re definitely actively investigating that in particular, and I’ll try to get details on exactly how it works for you.

I realize that fel energy regen is bugged, but I was wondering: does the what the fel energy tool tip says, that regen is 10 energy/second, reflect what is supposed to be happening and therefore we should sim with that number?

On a related note, since pets are supposed to be energy limited rather than time limited will energy regen scale with haste or is it intend that pets won't really scale with haste (except for auto-attacks and when starting from 200 energy and cast time is briefly the limiting factor)?
The intended fel energy regen rate is 10 per second, modified by spell haste. If you have 30% haste, your pets should regenerate 13 energy per sec. I’m not sure exactly how it’s bugged right now; I believe it’s actually getting 23 per sec or perhaps 26. Regardless, 10*(1+SpellHaste%) is the intended regen rate.

Even though regen is currently too fast, mathematically at least some of the pets should be able go Out of Energy just by casting their “main” auto-cast ability, but they never do. Using the Felhound as an example, I have seen it sit there and not cast Shadow Bite even when it has more than 60 energy and SB is off cool down. Instead it tends to wait until roughly 100-110 energy before casting, which is great because when I want to cast a time critical ability like Spell Lock there is, or very soon will be, enough energy to use it rather than having to (possibly) build all the way up from zero. Did you do this on purpose or is this a bug?
This is actually intended. We modified the auto-cast functionality to only use their basic attacks when above certain energy thresholds. This has the effect that it still uses energy fast enough to never cap out and waste energy, but pools a significant amount of energy beyond that, for you to manually use on utility spells, or simply burst damage via their basic attack. Hopefully this feels intuitive and useful.

Lastly, I think there needs to be some change to the guardian cooldowns so that we can actually use them on most attempts in raid PvE without having to worry if it will be wasted on a wipe. I won't rehash all of the proposed solutions becuase that's been done enough, but with DS teir being replaced by new gear I am worried about going back to the way things used to be.
We have new tech to reset certain long cooldowns that you’re sometimes tempted to wait around for before each pull (such as Summon Doomguard), when you wipe on an encounter. This tech hasn’t been hooked up to every encounter yet, but you should be able to see this work on some encounters (such as Stone Guard on this Friday). This won’t apply to every long cooldown. Our current rule of thumb is that it applies to cooldowns longer than 5min, but no longer than 10min, but there will be some exceptions to that. It is going to be very subjective which cooldowns are included, but again our rule of thumb is: would reasonable groups kill time waiting for this cooldown to finish before starting an encounter? Please don't lobby for every cooldown you have to be included.

When I go into demon form I start doing some kind of auto-attack (I'm not sure that it actually IS auto attack but it seems like it) and I was hoping you could shed some light on what is happening because it behaves very strangely. If I equip a wand I launch “fire” balls that do white damage and the attack rate is very slow, but if I equip a staff (which has a slower attack speed than the wand) I actually speed up, launch “shadow” balls, and do yellow damage instead, and if I go unarmed it does the same thing as with a staff but less damage and maybe slightly faster.. (BTW, “fire” and “shadow” refer to the graphic you see not the magic type) I haven't yet had a chance to try swords or daggers to see if that makes any difference. What exactly is going on here?
We still have some residual cruft left over from the conversion of wands from ranged weapons to main hand weapons. The intention is currently that while you have a wand equipped, you can effectively shoot your wand as an auto attack from range, just like hunters (simple right click on a mob to auto wand), except not while moving. However, all caster spells should reset this ‘swing timer’ so to speak, so wanding should never be a part of a normal DPS rotation, any more than melee attacking is currently. This is currently working for some wands, but not others, and has some issues which we’re working to resolve. It seems that this auto wanding is also overriding the Metamorphosis Touch of Chaos, which it shouldn’t. You should be safe ignoring wanding for the purposes of DPS modeling, but if anyone finds a way to make use of it for sustained DPS we’d like to hear about it.

Anyway, what you’re really interested in is Touch of Chaos. While in Metamorphosis, you gain Touch of Chaos, which is effectively a ranged Shadow damage auto attack. It fires every 1sec (reduced by spell haste), even while casting.

Is it intended that to get max dps out of pets we have to have a macro that spams their special attack?
No, solving that was one of the primary reasons for the switch to energy on Warlock pets. However, there’s currently a bug which is drastically increasing their energy regen rate, making the balance of the different pets way off, and making them limited by cast times in some cases instead of their energy regen rate, as is intended.

I did some very simple 5 minute pet-only parses on the Raid dummies on my Warlock to compare pet damage, and I found a few issues. All the tests were done with Grimoire of Supremacy, and I did not use macros to force pet attacks. I'll investigate more thoroughly when I have more free time.
We mentioned earlier that warlock pets are all getting almost double the intended amount of energy regen, which is extremely skewing the pet balance. But, I wanted to say that these logs were helpful to have as comparisons as well. Glyph of Demon Training will no longer be a DPS increase when they’re energy limited, rather than time limited. The Void Lord’s damage will go down considerably once it stops spamming Torment non-stop. The Void Lord is intended to be strong DPS while it is actively tanking, but not while not tanking.

In short, shouldn't Grimoire pets do as much dmg as regular pets for that duration and benefit from mastery, crit, haste and sp equally?
Yes. There’s currently a bug where the guardians don’t inherit your stats, making them do considerably less damage.

Seeds of Corruption:Now this spell has turned into an amazing spell compared to its current state on live. You get to keep corruption AND can have 2 seeds on one target (soulburn and regular seed) which is amazing. The question is, How are we suppose to use this spell now? spam seed the same target or do it on multiple ones? The problem is that it takes really long to detonate (cast time + travel time + detonation time) especially if you are trying to seed multiple targets. I am not sure if affliction can keep up with the other classes since the AoE is not bursty and on demand like for example, Mind seer.
We’re trying to focus on ‘how does this work under the hood’ sort of questions, rather than ‘why did you design it this way’ or ‘how are we supposed to use this’ sort of questions, but I’ll comment on this since there’s a few significant changes to Seed of Corruption that I’d like to call out.

Old Seed of Corruption: Broke on any non-proc’d damage from any source. Typically spammed on one target while in a group, and other players’ damage broke it. The ‘non-proc’d’ requirement probably is never even noticed, but includes Seed’s explosion itself. i.e., if you seed multiple mobs, the explosions from one will not pop the others.

New Seed of Corruption: Breaks on any damage from you. The explosion from one (and indeed, any other proc’d damage) CAN pop other nearby seeds.

While this means that Affliction’s ramp up time on AoEing may be longer than most, it does mean that their potential burst (when there’s time to setup the seeds) is incredibly high; Seed multiple mobs and the explosion from one will typically set off all of the others in a chain reaction. 8 Seeds exploding at the same time is probably the most burst AoE damage in the game right now, but also requires significant setup time, so isn’t really “on demand” burst. Still, it should be such that if you’re AoEing near a boss that you have already DoTs up on, it’s easy to Seed the boss and then start seeding the other mobs while your DoTs pop the boss’ seed. Additionally, the ability for Seed of Corruption and Soulburn: Seed of Corruption to stack was unintended, but we’re currently going to leave it and see how that plays out. We may change that in the future (mostly due to it not being intuitive), but will experiment with it for now.

Drain Soul is supposed to replace Affliction filler malefic grasp at certain points in fights, most notably during the execution phase of any fight sub 20%, but it is not currently supported by the talents that are supposed to affect Warlock filler spells (Soul Leach and Affliction's Grimoire of Sacrifice)
The next build should include Drain Soul being affected by Soul Leech and Grimoire of Sacrifice.