Probably not MGS4 since Sony is bundling it, but GT, GoW are made and published by Sony and Final Fantasy could go to 360, but not 13 and v13.
Also, GeoW is published and paid for by Microsoft, the only other platform it is going to is PC and Mass Effect was published by Microsoft also and when it was sold to EA (and this part is rumor as far as I know) EA agreed to Mass Effect 2 being a 360 exclusive.










