The rumours being that a release date could be moved forward to combat potential lost sales, which I think would be a bad decision. The vast majority of the community and PC gamers in general, are more than able to wait the month or so for the release.
I've waited over 3 years for the sequel to one of my favourite games, let's wait until Crytek is finally ready.
Plus, on a positive note, people are showing restraint on the torrent sites... http://torrentfreak.com/crysis-2-leak-fails-to-result-in-massive-download-fest-110213/