Well, how about that change to Mortal Strike? I mentioned a few weeks back that it felt to me like arms had lost its teeth in PvP, that it needed all of its cooldowns lined up to really put the hurt on anyone and that it had lost its identity as a force to be reckoned with. Does this change restore it? Well, yes and no. Yes, in that it will indisputably increase arms (and rogue, and hunter pet) potency in the PvP setting. No, in that it will not increase it by all that much. A 10% healing debuff is trivial. A 25% healing debuff is more than twice as good, but we'll see if that means much against healers at the level of gear they're going to have.
What the MS change really did to my brain (especially as I write this on the verge of BlizzCon, where hopefully many secrets will be revealed) is think about what I would like them to do for all three warrior specs. What do I want to see? What would I never, ever want to see again? Let us peer into this completely imaginary crystal ball and speculate.
This post will be broken up into two parts. Part one will be my pre-BlizzCon speculations. Then, in part two, I'll come back after BlizzCon and react to what the announcements are, and see how close I managed to get to the mark.