Not much chance of that ... more chance of a PC release.
Sony have announced new platform SDK which fits in nicely with the whole xna set ... C# + PS.SDK = multiplatform (PC/xbox/ps).
Smart move, as even the sony portable range will be included in the support framework.
bungie will be kicking themselves ... new ps3 engine is already a lock-in.
Been great to see hairbrain move to the SDK, go multi-platform.
Mind you, doubt bungie would like that :(