Well in kotor 3 i have dug up some possible infromation about it its about the empire revan came to chase
This possible dark jedis empire came to life around the jedi time it is beleived that the empire could be xendors the long forgotten and dead dark jedi empire it is possible but the anceit sith lords were the first sith lords its true because xendor was never a sith lord he was the first to leave the jedi though when kreia said you think these are sith xendor was extremely powerful but hes dead but his empire could still possibly remain So i'm going to lacen up my boots and kill xendors empire if its in kotor 3
Well it's possible they could use this but if you didn't hear this from Lucas then I wouldn't count on it...the web is swarming with rumours about KotOR III (storylines, mission, planets, plot, etc...) but they all know nothing and feed on themselves because Lucas has not started the next game so it's all speculation and nothing more...
But your info was interesting and I appreciate your posting it...who knows, they may use it, they may not?
As soon as I hear something directly from Lucasarts on KotOR III I'll post it here