Probably safe to now say that Diablo 3 has been delayed again to a targeted Q2 2012. (aka earliest of April release, but not "fact" yet)
The information broke at the Q4 2011 Financials call on Thursday.
http://www.youtube.com/watch?feature..._AimQQ#t=2181s
However, the financial conference call also said to expect a release schedule for Diablo 3 in the 'coming weeks'.