Now that many serious raiding hunters have gone SV
is Blizz taking an extra close look at it and not liking what they see? Lock and Load is getting mucked with (no more Frost Trap shenanigans.) Black Arrow, which some of you may remember from a beta datamine, has returned, and applies a ticking shadow damage debuff that will proc LnL. SVs are also getting a Trap Launcher...which is neat, but to me, is somewhat at odds with the Survival Tree.
Each talent tree of a pure dps class can have a hard time distinguishing itself, but the hunter trees are looking good in that respect post-3.0.8. BMs have their own thing going on with micromanaging their pet. This a fun dynamic. I like remembering to pull my pet back to me to dodge flame waves on Sarth, or get him out of void zones on KT (from time to time I also really enjoy the bosses where my pet sits there and generates half my dps without me lifting a finger.)
Marksmen are rocking Chimera Shot and managing their stings. (Sorry MMs, I haven't played as Marks since I leveled to 70, and I don't know the inner workings of your awesome spec, but I will be respeccing and exploring it soon. When I do I will wax poetic about Piercing Shots and Wild Quiver and all that good stuff.)
Now Survival hunters, they are doing something that I think is really cool, and has always been implied in their tree: staying close to melee range. Hunters are not a melee class, but SV always pushed that boundary a bit, possessing the most talents relevant to melee. With trap dancing, raiding SV hunters are actually getting in there and giving the boss a smack with their axes as they plop a frost trap under the big lug. This is a really cool play dynamic. One that doesn't exist anywhere else in the game, and Blizz wants to get rid of it!!! As things stand now on the PTR, an SV hunter will just stand back, launch an Immo Trap, fire a Black Arrow, and then go into their rotation. Explosive shot even refreshes the Immo debuff, which is a direct theft of Chimera Shot's mechanic. Playing SV and MM will both become "Stand at range and keep your DOTs up," making two of the hunter specs into bootleg affliction Warlocks.
What a wonderful world (of Warcraft) it would be if each talent tree did equal damage, and you got to pick the spec that suited your style of play. Do you want to take charge of a powerful boss-shredding beast? Or be a ranged purist? Or perhaps you don't want to let your pet have all the fun, and every once in a while you want to get up in that boss' grill and snatch his ass in a bear trap? As 3.1 stands, the choice between MM and Surv is shaping up to be, "Which one does more damage?" Which is an important choice, but also an uninteresting choice.