April 1st and Blizzard's Gags

Same as every year, I'm sure Blizzard is preparing us another of their gags. Wowinsider has a nice summary of past years' gags. I'm curious what they will come up with this year. I'm willing to bet it won't be announced on exactly April 1st but perhaps 1-2 days earlier or later. Of course, they won't fool us this year! That's what I always believe but they come up with some crazy stuff sometimes that almost seems almost.

My prediction of this year: a new class is announced for Diablo 3: the Death Knight! Heh heh.