For rockstar, LA Noire will already be out, so expect to see either;
GTA5, or Agent.
No way in hell is there going to be Gran Turismo 6 news at this years E3. Maybe some sort of content pack/track pack expansion reveal for GT5, but probly not at the keynote.
-There will be alot of NGP news and I do think they will reveal the price.. of $350 and $400.
-We will see Killzone and Uncharted for NGP, see the details of the trophy system, new games, cross PS3 connectivity stuff.
-Call of Duty reveal for the NGP/PS3, details of online play; cross psp/ps3 online play megatonz!
Next multiplat from bungie will be shown off at Sonys E3 Keynote to close out the conference.
No new Skus, No pricecuts, and No Kevin Butler this year... sorry.