i like the Draenor idea here for the xpac. I've only been playing blizz-like vanilla private servers as of late, I quit during Cata. I've tried new WoW but the gameplay is dumb to me. WAAAY too many abilities, and not enough uniqueness to classes anymore. Like "balance" shouldn't mean make multiple classes with the same buff, rediculous damage and HP levels, most classes feel too much like others.
If they can manage to update WoW and make it more like vanilla in some ways, (not all of couse, hybrids specs should be viable) to maintain that feel of a unique class-spec then i'll consider renewing.