This E3 is his to win. Two Rare IPs (Battletoads and something else), Scalebound gameplay, Rise of the Tomb Raider reveal, Halo 5, Forza 6, Crackdown 3, Gears Remaster unveil, and a Gears 4 unveil. That's every MAJOR first party franchise MS has plus some topping. It is literally is the perfect storm. It's like a dream E3 list for a Xbox fan come to life. On top of that, I am pretty sure they'll have some smaller games and some other suprises. You don't get the honor to host a conference like this, except once or twice a decade.
I am a Sony fan, but I am stupidly excited to see what Xbox has to show this year because there is potential for best Xbox conference ever about to happen.