Its not just possible its almost guaranteed. Remember the orig splinter cell was supposed to be Xbox only too until it wasn't.
Every good 360 game except gears and Halo has made the trip over to the PC and usually Sony's way too, usually in an enhanced edition. Its virtually guaranteed. Thats why I don't get the point of the 360, I mean you need a PS3 for great games like Uncharted 2, Demon's Souls, Ratchet and Clank ect (3 9.0 games in just the last 2 weeks) but you don't need a 360 for any of the good games really, since they all either hit the PC or PS3 or both.
I'll get Splinter Cell next year for the PS3 with added levels and a new difficulty level IE Bioshock.