As for the Epic game, assuming one is being unveiled, Epic does actually have a lot of teams.
Epic Games Team 1: Gears of War Series
Epic Games Team 2: Unreal Series
People Can Fly: Mystery 360/PS3/PC Title (Seemingly Nano.Strike)
Chair: Shadow Complex
Titan Studios: MMO Engine Components (Also Did Fat Princess For Sony)
They also have a few helper teams that slowly seem to be evolving into studios:
Epic Tokyo: Licensing/development assistance for Japan with a stated goal of eventually making games if they can get enough people.
Epic China: MMO Engine Components And Art Asset Creation, though it seems to have become large enough that they could quite feasibly make games out of it. Oddly enough, they had them purchase Titan Studios as opposed to Epic itself, despite Titan Studios being based out of the U.S.
There are a few other places like Epic Korea, but those haven't really shown any sign of game development outside of helping Epic's licenses in the region.
I still think Nano.Strike is most likely though as People Can Fly's project has been announced for quite a while with no details.