im sure the game will come to the PS3 eventually, it would make financial sense for SE. my guess would be a Mid 2010 release. Just like its inevitable for FFX13 versus to come to the 360 (where a large number of FF fans in the western markets will have relocated due to the main series being released day one w/ the ps3 version).
im hoping that the fanboys will agree that if one is likely, the other is equally so.