With the the warcraft movie finally in production (or somewhat still pre production), we finally get new character models too. Its an interesting collision, they probably needed a good reason for risking old players quite wow because they no more feel nostalgic about their characters. So with a successful Movie there is a good chance to get new player into World of Warcraft, but having the game look dated would be a problem then. So the gains of new models maybe finally overshadow its risk.