26th is Tokyo game show. I suspect both MS and Sony will be there to show off any RPGs they have.
MS managed to nab a lot of RPG developers back in 2007 while Sony was still sorting through the launch, let alone trying to get their third party support and dealmaking going. Meanwhile, MS went around with the money hat and the sales figures.
I suspect Sony will try to get back some of those gamers by pushing the next Team ICO project (which often appeals to the same market as RPGs), Factor 5's project, White Knight Chronicles, and the confirmed exclusive FF Versus 13.
I'm also pretty sure a lot of those 360 RPGs are timed exclusives. Tales of Vesperia will undoubtedly come to the PS3 once a timed exclusivity period is up. The only reason why the last remnant was delayed on the PS3 was Unreal Engine troubles (damn Epic) like a lot of Unreal engine developers had.
As for Folklore, well it was such an oddity, the basic gameplay was actually quite good and a lot of people enjoyed it. But, they cut too many corners with the story and presentation that it lost whatever impact it could have had. If they just held it back to polish, focused on one character (with only short stints as other characters at set points), and upped the presentation with voice overs, proper cutscenes, etc... it would have been reviewed and sold a lot better.