In the next link you can see the "most pirated games of 2011":
http://www.destructoid.com/most-pirated-games-of-2011-include-crysis-mario-gears-218757.phtml
Well, as you can see PC version of Crysis 2 has been the most pirated game for PC, so it's easy to understand why probably they won't launch a new Crysis for PC. It's really astonishing, 3,920,000 illegal copies!!!!
For me Crysis 2 was an amazing game (one of my favourites of the year with Uncharted 3 and Mass Effect 2 [PS3]) and it's sad to read these things...
Yes you can Crytek!! Better luck for your next Crysis with the piracy