Title speaks for itself, of course you have the big image Quantum Break, and Forza 5. I wouldn't look too far into Halo, it's just a logo and we'll inevitably get one.... But the other images
1. Bottom left green Crackdown agility orb, I don't know why they would use that unless we're getting a sequel (a real one this time).
2. Bottom right has the Rare logo, if its an HD realization of a old franchise I wouldn't know what it is.
3. Middle right is almost certainly Ryse (roman buildings)
4. Top right, most intriguing to me, kind of gives me Fable vibe (Seer eyes)
I wouldn't look too far into the image between Forza and Halo, kind of looks like the Demo stuff 18 seconds in there. (I guess it could still be from a game?)
*-Update:* As Tom Warren points out the one betwean Forza and Halo is likely the the family kids game set on an island he reported on. http://www.theverge.com/2013/4/11/4212054/next-xbox-launch-titles-ryse-forza