Great!!! id Tech 5! If the gameplay is similar (still taking advantage of gravity and physics), along with this engine and Prey 2 makes it to my 2012 "do want" list!
It will not use id tech 5 engine.
http://www.bit-tech.net/news/gaming/2011/03/15/prey-2-announced-doesn-t-use-id-tech-5/1