On IGN's Podcast Beyond ep. 12 , they have said that Atlus is working on a new exclusive game for PS3 which might be the next Persona. Apparently, Atlus is trying to figure out when to bring out information about the game. IGN said that they're thinking about getting us the info after TGS.
If you've never heard of Persona, it's a hidden RPG gem, even amongst the hardcore gamers. Because of the nature of that, it's not some huge system seller so for the people that only care about sales, this isn't what it's going to be. However, if all you care about is great games, here's another one.