The Force Unleashed 2 carries on its "tradition" of alternate universe DLC in the upcoming Endor bonus mission. This mission will let you kill Ewoks, fight Leia in a lightsaber duel, and thanks to IGN we can now see how you'll kill Chewbacca and Han Solo. Because obviously the best fan pleaser is to let them unceremoniously destroy two of the most iconic characters in the Star Wars universe.
In the DLC missions for the original The Force Unleashed, you got to kill Boba Fett, Obi-Wan and Luke. Which was still ok, because Boba Fett is a bad guy, Luke was one of the series' biggest whiners until we saw Anakin in the prequels, and nobody cosplays as old Obi-Wan.
Killing Han and Chewie? That's not very cool or fun. That AT-ST model was not in the movies either. But it's ok, because as long as you say it's non-canon you can ruin anything. Nerd rage!