The following RPGs have been confirmed to be at the Tokyo Game Show:
Final Fantasy XII (Square Enix)
Kingdom Hearts 2 (Square Enix)
Dragon Warrior VIII (Square Enix)
Drakengard (Square Enix)
Suikoden IV (Konami) (Proof:
http://gamingnow.net/html/modules.ph...rticle&sid=722)
Xenosaga Episode II (Namco/Monolith)
Also, there are rumours of ICO 2, Dark Cloud 3, and Lunar 3 also being shown at the Tokyo Game Show. Dark Cloud 3 and Lunar 3 have been confirmed to be in the works, but if they will actually be at TGS is unknown.
OMFG! Suikoden IV!! I so can't wait. Now, if only Square Enix would make Chrono 3... this generation's RPG collection would be complete. I also want every game on that list. TGS will be so awesome... better than E3.