I will update this post as information comes in. I may miss details - please do let me know if this is the case.
TL;DW (Too Long; Didn't Watch):
Microsoft
Call of Duty: Advanced Warfare will have some DLC to temporarily be Xbox One exclusive.
New free tracks for Forza 5 - available now
Forza Horizon 2 announced - to be released September the 30th.
Assassin's Creed Unity to have 4-player coop. Will keep the shitty fighting system.
Dragon Age Inquisition to have temporarily exclusive DLC for Xbox One. Will be released on October 7th.
Sunset Overdrive - New IP announced. A humorous, colorful survival(?) game. Released October 28th.
Dead Rising 3 DLC announced - has Street Fighter characters.
Spotlight Dance Central will be available for download on Xbox this fall.
Fable Legends will have a beta available on Xbox 360 and One this fall.
Project Spark gameplay showed off
Ori and the Blind Forest announced. Platformer that shall be exclusive for the Xbox One.
Halo Master Chief Collection available on November the 11th. Will include a bunch of older Halo games to the Xbox one, including over a 100 multiplayer maps in 4 games. Included in the bundle is access to the Halo 5: Guardians beta in December.
Tomb Raider sequel, Rise of Tumb Raider announced. Release expected to be the at end of 2015.
Wither 3 gameplay showed off.
Phantom Dust rebooted
The Division to be released in 2015, have DLC available first on Xbox One.
ScaleBound, by Plantinum Games announced. Xbox One exclusive.
Crackdown 3 announced, Xbox One exclusive.
Update:
EA:
Star Wars(?) Battlefront(?)
Dragon Age Inquisition video demonstration
Mass Effect - new characters, concepts, story etc. No actual gameplay.
Sims 4 - Demonstration video, once again no actual gameplay.
EA Sports UFC announced, prerendered footage shown off.
EA Sports NHL 15 announced.
Criterion game - not many details given. No name, no date.
EA Sports Golf PGA. Based on Frostbite 3.
New EA Sports Madden game. Release August 26th
Dawngate shown off, not a whole lot to report about
Mirrors Edge 2 announced. No gameplay, only prerendered concepts.
EA Sports Fifa 15
Battlefield Hardline announced. Battlefield set in a cops vs. criminals environment. Along with the announcement, a beta was released for PC and PS4.
Update: I won't be able to cover neither the Ubisoft or Sony conference tonight, but will likely update this very post when I get the chance. Have a good one!