Chances are it will be better optimised and less of a resource hog. I don't think EA/Ubi liked their game being used as a benchmark instead of a game. Other than that, i hope my rig can handle that game with a few upgrades. New CPU and GPU and i'll be on my way.
Why i say it will be optimised? The devs said that Crysis + Warhead were unable to work on PS3 and XBOX360 due to inadequate resources on the consoles.
Also, i unstalled crysis.. i beat it too many times and was tired of it lagging in the cutscenes. Still playing warhead though. Hmm, even warhead is a resource hog by today's standards... or maybe it's my E4500. I'm going to get an E6700 and a 4850 soon