Epic is almost owned by MS ... dont expect more Epic PlayStation Games anytime soon or even ever... Sorry guys this is the way Microsoft Rules and Sony has no money to counter them.
Bungie (Halo)
Ruffian Games (CrackDown)
Epic Games (UT , GoW , Shadow Complex)
FeelPlus (Blue Dragon ... Others)
Remedy Games (Alan Wake , Max Payne)
Those and some more wont make games for PlayStation anytime Soon , maybe in PlayStation 7 we can see Games from those on a Sony Machine but before that just forget.
BioWare and UbiSoft is other Story ... Splinter Cell is only exclusive because MS has done alot of advertising in the 1st Splinter Cell and it comes 1st on Xbox and ofc Microsoft has give them some bucks ... Mass Effect 2 is due to BioWare Said that it will be a Xbox 360 EXCLUSIVE Trilogy...
But i believe Mass Effect 2 will come to Ps3 but NOT Conviction ...