according to gamespot, they will also be revealing the launch titles for the ps4 today.
"The usual franchise culprits will be announced: a new Uncharted, a new Killzone, more teasing of The Last Guardian, and a new Infamous. Sweet Jesus, the latter announcement would make my day. Other potential surprises include Metal Gear Solid 5/Phantom Pain/whatever Kojima Productions is working on to be a PS4 exclusive."