To be honest, I'm intrigued about the potential for an Imperial remnant (assuming the Stormtroopers and the TIE's actually belong to some sort of Empire). I really wish they had used some of the characters from the Expanded Universe like Thrawn and Pellaeon, it would have been interesting to see them.
I think they tried to push Pellaeon into The Clone Wars tv series no? That would mean that he might show up (not entirely sure though).
I also hope they draw a little from the EU already created. I mean, we know that Lucas hates it whenever someone else writes stuff about Star Wars, but he has to admit some people get it right (i.e. Revan, Thrawn, etc.)
