From the Escapist:
"The studio is looking to return to its old stomping ground with another game set in theStar Wars universe. CEO Feargus Urquhart has revealed that Obsidian is lobbying heavily to develop a new Star Wars RPG.
Rather than step on BioWare's toes and set their game during the Old Republic era, Obsidian is looking to explore one of the darker, more interesting periods of the Star Wars chronology; the fall of the Republic and the extermination of the Jedi."
All I can say is that the original Knights of the Old Republic was based on D&D d-20 rule system. Perhaps Obsidian can take a look into Fantasy Flight's Star Wars title "Edge of the Empire?"
Its more or less set around the same time frame.