I renewed my subscription because of this although I haven't really played it much. Maybe it's a just my stubbornness to accept new things, but I still feel more motivated to play vanilla or WotLK than I do retail. There is something about retail wow that I don't like, but I can't figure out why. I installed a vanilla private server and it just feels better to me. I think if they implemented that pristine server idea I would be more interested in playing modern wow. Even though the gameplay of vanilla was highly repetitive and grindy, the community was really good. Since the game was more difficult it encouraged teamwork.

Anyway, when they release classic wow I will probably renew my subscription to play it.