And here is aforesaid trailer regarding the DLC for Star Wars: The Force Unleashed. You'll battle with Obi-Wan and Luke (on Hoth) and, quite gratuitously, Boba Fett. Wonder how they'll retcon that one.
OK, so, you look like Isaac from Dead Space, and the Emperor's VO is loud enough to make me think this was a fan-produced trailer. But it's not. This expansion is on the level, and you get access to this storyline content in the fall. Enjoy!
Exclusive Ultimate Sith Trailer [GameTrailers]