They've let completely broken mechanics over-run pvp. Warriors/hunters/mages have been running amok for quite some time. Only the most recent changes fixed hunters, but warriors wont be fixed completely for sometime. Basically they've been devoting more time/resources to pet battles than actual pvp. Nothing new in the way of their pvp balance model/structure, just the new iteration of it. So if you've come back for pvp make sure you read up on whats going on. Bottom line though no matter how good or bad the class you pick is perceived to be just make sure you'll have fun. Otherwise it will get as old as the "he chose poorly" guy in indiana jones and just as fast.