Seihyouken on 24 February 2009
M.A.G., God of War III, and Gran Turismo 5 are all scheduled to release sometime between October 2009 and March 2010.
It's probably too optimistic to expect all three before the new year, but it's almost certainly too pessimistic to expect all or even most of them after. Sony isn't going to release its three biggest upcoming IPs a month or two after the selling extravaganza that is the holiday season. One of them will in all likelyhood slip into 2010 (see: Killzone 2, Halo Wars) so as to keep console sales alive during the period, but that's it.
