Just looking at the pics of Series 6 and reading back at some of the old lists, maybe the next couple of waves are movie specifc as well. For empire we could get:
Bespin guard (lame)
Bespin Leia (chase)
Chase Holo Yoda
The Empire list looks kind of weak, but that flick didn't have the diverse life-forms that New Hope and Jedi had. I can't see them making a probot, wampa, or tauntaun. Any other ideas?