User blog comment:D. Cello/New Assassin's Creed game, "Brotherhood", confirmed/@comment-1153722-20100507190656

It's just a spin-off. It's not an entirely new game. I don't expect it to have so many new features than the original Assassin's Creed II.

And of course, I am sure that the release is going to be delayed. That's with almost every game.