Vozlov said:

I'm currently working on writing KoToR 3, exploring the 'ancient times' which is a complete rewrite of Marka Ragnos and the Great Hyperspace war, setting it a few thousand years after the fall of the Rakataka and the Infinite Empire. I'd also incorporate and rewrite the origins of the Valley of the Jedi, linking it to the threat that Revan went off into the unknown regions to fight. This will all in turn link in to my prequel rewrite.

You might find it interesting that at one point during the development of the NJO book series the Yuuzhan Vong were supposed to be a Sith Empire that was older than the Republic. NJO was also supposed to be a comic series instead of a novel series at this point.