E3 is going to bring some BIG announcements.
Microsoft:
Halo 2 Anniversary. The worst kept secret in gaming is real. The MS conference begins with the legendary E3 demo remade. 343/Sabre/Certain Affinity collaborative. MP is there but its Halo 4 gameplay on Halo 2 maps. XB1 (60fps) and X360 (sub720p, 30fps). Trailer ends with release date 11/11/14.
Forza Horizon 2. Larger world, dynamic weather, emphasis on social integration. Basically Microsofts response to Driveclub. Fall 2014.
Sunset Overdrive stage demo. 4 player co-op. Lots of mobile integration. Community feedback will shape the game post-launch.
Quantum Break sizzle reel. Small delay, Winter 2014/15″
Call of Duty, Advanced Warfare. DLC exclusive to Xbox for 1 month. 4 player co-op. MP looks strikingly close to Crysis and Halo.
Fallout 4 teaser trailer. Set around same time as 3. Similar to the other Fallout trailers but instead of music its Three Dog asking for help over the air.
Mass Effect CG trailer. Full title is Mass Effect: Contact. Takes place during the First Contact War prior to the first game.
Gold paywall for apps is over, effective immediately.
Fable Legends brief CG trailer. Spring 15.
XB1 Games with Gold unveiled. Starts in November. First game is Forza 5.
Conference ends with Halo 5 gameplay trailer. Looks totally unrecognizable from the series. Open world, lots more vehicles, getting close to more of a Battlefield feel. Release date listed as Fall 2015″ but Halo 2 includes beta access early next year.