Mr. Adventure wrote:
Ventress could be a good villain for the new films. Though I have to wonder if Maul might not be resurrected for the new films, courtesy of the Clone Wars. He too would make a good villain.
I think Maul would be hard to explain to those who have only seen the films while Ventress would be a blank slate to those without a history of her.
I don't think either scenario is insurmountable. It wouldn't take much to explain that Maul was restored by dark side magic. Plus Maul remains a very visible figure in Star Wars, due to the recent Phantom Menace 3-D, the Clone Wars cartoon, and other media.
With Ventress, being a blank slate for a new movie could be a benefit. Her back story won't have to be explained in much detail anyway. If she does come back, I could see her as Sith Lord in her own right and the other Star Wars films have gotten along fairly well without exploring much history for Palpatine, Maul, or Dooku.