Whatever they decide to do, I hope we get a preview in the next couple of weeks. I am torn as to what I would like to see, as I think there are several characters that would serve to highlight the scope of the line:
Ringwraith - pretty straightforward villian
Lurtz/Uruk - villian with challenging skin coverage and oversize body
Moria Orc- Armor issues similar to stormtrooper concerns
Gimli - scale issues
Hobbits - scale issues and feet issues (could double as jawa/ewok bodies)
all of these characters would pose unique challenges to SS, and while I would love to get Boromir or Gandalf, the variety that this line presents is really what has me most excited!