I dunno, I don't think it will get nerfed.. If you notice everyone keeps saying.. thunderstorm/demon form/explosive shot/living bomb(lol) etc will be nerfed.. but the thing is blizz has given pretty much everyone something a bit OP and some AoE at that too :)
rogues and warriors can now disarm your shield!!! and weapon for that matter, let alone reduce your armour to 0 :P so rogues will still be melee vs melee kings.. mages although they got crappy 51-point talents have a rly nice new spell against melee.
Instant physical damage shield that when it's broken (ie enough damage absorbed) freezes everything within 8 yrds, combine that with frost nova and pet nova, and you wonder how anything will get to them..but then again, melee looks to be hitting a lot harder come WotLK.
also frost looks like the new raid dps spec, so you have the control and dps all in one :) (i'm talking 80% sustained crit chance in 25mans - with 3 or more frost mages)
Druid healing is going through the roof :S so is dps :)
everyone is getting buffed like crazy :) If they do start nerfing things, then they will be dong it to all of them
I don't see why everyone is worried about these things tho :) It's going to make the game, and multiboxing all the more fun :)