Ground rules for this discussion are as follows. I expect everyone posting in this thread to follow them strictly, otherwise your posts will be similarly downvoted and ignored.
-> This thread is for Arms only. Discuss only Arms specific changes. Fury specific changes are not to be discussed, even using analogies. Balance factors can be discussed in a general thread which already exists. i.e Balance between Arms and Fury.
-> There is to be no PvP discussion in this thread, only PvE. Balance between PvP and PvE can be achieved by popular consensus to increase mobility and not damage, which has little to no effect in PvE as we are only concerned about damage.
-> Keep the thread civil and flaming/foul words to a minimum. I don't want this thread to get closed due to any kind of provocative language.
-> I expect everyone not to post walls of text with no punctuation or grammar. Keep your post detailed, informative and clear to read. If you can't, go back to school. Just kidding, but no walls of text please, most people will just ignore you.
To start off, I'm just going to list most of the general changes starting from class specific changes, and then on to the Talents, as they are not class specific and can be discussed later.
-> Heroic Strike now does 100% WD and has a constant 1.5s CD.
What this means for Arms : This seems to be a balanced change as there will not be difference between Arms and Fury now due to differing amounts of AP. The Inner Rage change seems to have been baked into HS and Cleave directly, which is a good thing in a way.
-> Battle Stance gives 10% damage buff.
What this means for Arms : Battle Stance will be the primary stance for single target DPS from now on. Stance dancing is basically removed, unless you need to AOE dps. Also stance changes now have a 1.5s CD, which means it will be a bit harder to change stances, but I don't see these being much of a problem since Berserker Stance provides a 20% buff to Whirlwind and Cleave.
-> Execute now costs a fixed 30 Rage.
What this means for Arms : No more <30 Rage executes means we will have to watch out for our rotation during sub 20% phase. This greatly improves the efficiency of Execute, but increases the skill cap by having to have better effective rage management during 20% phase.
-> Mortal Strike now has a 6s CD, costs no Rage, generates 10 Rage, and does 110% WD + 625 damage.
What this means for Arms : 6s CD means there will be more GCDs to fit in between Mortal Strikes, meaning we can use a general rotation of :
Since it now generates 10 rage, it effectively gives us a 30 Rage boost, means we use it on Slam or CS or HS(depending on overall amount of Rage).
The damage seems to be nerfed, but considering the fact that Weapon Damage is supposedly going to be buffed in MoP, this is going to be open to speculation.
-> Seasoned Soldier now gives us a 20% damage boost, up from 12%.
What this means for Arms : From a Stand Alone viewpoint, it looks like a straight damage buff, but might just be compensation for other nerfs.
-> Enrage : New Mechanic, causes Critical Strikes from Special abilities to increase rage generation from melee autoattacks by 25% for 6 seconds.
What this means for Arms : Anger Management is gone, which means we lose constant 25% Rage generation as well as 1 Rage every 3 Seconds. This change somewhat offsets the loss, but makes us even more dependent on Crit to maintain our rotation. This change becomes extremely significant considering the fact that Taste for Blood no longer gives Overpower an increased 60% Crit chance. More on this further down.
-> Slam is now instant cast, costs 30 Rage and does 135% WD + 1177.
What this means for Arms : We no longer lose delay in rage generation due to Slam's 0.5s Cast pausing/delaying autoattacks, however Slam's current effective rage cost is 20 Rage, which is actually increased to 30 Rage in MoP.
However, the removal of cast time makes it somewhat more comfortable to play Arms, as not many people liked the cast time. The damage is also decreased, but again due to the WD buff in MoP we'll just have to wait to measure the actual change.
-> Heroic Throw now does 50% WD.
What this means for Arms : Not a big change since we hardly use this if at all, but again removal of AP scaling is a nice balance change.
-> Pummel has a 15 sec CD.
What this means for Arms : Considering that most other interrupt CDs have also been increased, I do not see this having a major effect in PvE. Still, open to discussion.