Two sources have apparently told Kotaku that the upcoming unannounced Respawn Entertainment developed game we've started calling Titan (following a trademark registration).
Described by sources as a multiplayer David vs Goliath where footsoldiers take on massive exoskeletons known as Titans - this game may come with Call of Duty pedigree but sounds nothing like it.
According to Kotaku the game will hit both Xbox 360 and the next Xbox, but no other competing consoles. A major coup by Microsoft if true, and possibly an explanation as to why EA were not given space at the PS4 reveal event.