I hope sales for this set are good enough for a second set. If it is, I'd like to see these characters for series 2.
Huer in this outfit (head swaps for Buck to have others in the same outfit). The plain grey outfit Huer wore is an easy head swap from the Limited Edition Spock, so I'd rather have the dress uniform.
Hawk
Killer Kane
Draconian (army builder, and Buck in disguise).
And for the robot "accessory" either Tina, or Crichton.