Another solid announcement especially for the RPG crowd would be White Knight Chronicles Japanese and US release dates. It would be huge if that game hit Japan in October or November and then got a US release date for March '09. I think that would tide over some of the reeling PS3 RPG fans such as myself.
Edit: A reveal of that rumored Tales game that was in some Japanese magazine a few weeks ago could help as well.
My Top 5:
Shadow of the Colossus, Metal Gear Solid 3, Shenmue, Skies of Arcadia, Chrono Trigger
My 2 nex-gen systems: PS3 
and Wii 
Prediction Aug '08: We see the PSP2 released fall '09. Graphically, it's basically the same as the current system. UMD drive ditched and replaced by 4-8gb on board flash memory. Other upgrades: 2nd analog nub, touchscreen, blutooth, motion sensor. Design: Flip-style or slider. Size: Think Iphone. Cost: $199. Will be profitable on day 1.
