Electronic Arts may be debuting Battlefield 4 at Microsoft's next-gen reveal later today, as the official Battlefield Twitter account has teased "Big announcements are coming soon!"
This follows rumors that Electronic Arts and Microsoft have made agreements that some EA content will be debuting at the event. It's already known that Activision will be debuting Call of Duty: Ghosts at the event.
On a side note, Larry Hryb has revealed that the event will be one hour, as opposed to Sony's two hour event that many complained was interminable.
Strategy Informer will be live-blogging the event, so stick around!