I'm on the fence. This is just personal experience but from the folks I know (including myself), many are still unsubbed and waiting to see if MoP is any good. Not looking at how many copies are sold or BS reviews from puppet gaming mags, but actual reviews from players who are playing it. It looks cool right now but for me, resubbing depends on the depth of the content and the replayability. If I see people complaining about having nothing to do a month in, I'll likely stay away for good.