It's not delayed, the release date has always been 2012, amazon and the others just guessed what the release date would be
See an old press release here
http://www.voltagepr.com/re...
Vatra arent n00bs, 90% of the team used to be 2K Czech
The video is of a demo they've been showing to previewers since the Game Informer coverage in January - We've since seen screenshots like this
http://images.wikia.com/sil...
So I wouldn't worry
THQ may release good games, but financially, they're royally fucked