Just came across this image, can't confirm the validity of it though. It looks like someone managed to sneak a phone pic of the exclusive list that will be presented for E3.
-Forza motorsport 5
-Banjo-Kazooie Grunty land
-Quantum Break (already announced)
-Halo 5 (also already announced)
-Halo Spartan Assualt (educated guess on the subtitle)
-Dead rising 3 (another guess based on the look of the text and the fact that there are already 2 dead rising games, although the placement of the 3 is confusing)