So to summarize, there are only four HD franchises that are San Andreas-sized, and any of them might have PS3 exclusivity news:
1. GTA. Rockstar are said to owe Sony for both breaking their GTAIV agreement and for taking LA Noire multiplatform. Agent is recompense for one of these, but that still leaves Rockstar owing Sony one exclusive. Exclusivity on the next GTA is therefore possible.
2. Call of Duty. The sacked Infinity Ward guys could have signed an exclusive deal with Sony. They wouldn't be able to use the COD name but it would still be massive as it would bring in a lot of Modern Warfare fans.
3. Halo. I can't see Bungie signing an exclusivity deal with Sony and obviously Halo isn't going anywhere except Xbox. But it would still be pretty big news if Bungie launched a game on X360 and PS3 simultaneously.
4. Gears of War. Can't see Gears 3 going PS3 exclusive, but simultaneous launch on X360 and PS3 would be massive exclusivity-related news. Epic own the franchise, and though they may have a contract with Microsoft for Gears 3 Sony might be willing to pay part of the break fee.
Most likely though this is either something much smaller than GTA (Final Fantasy, Kingdom Hearts, MGS, etc) or just an empty rumour. Would be interesting if I'm wrong though!
