It does make you wonder if there's a third student of Kreia's students out there alive, shaped by her teachings. So far we know of 2 living (Revan and Exile), and 2 dead (Nihilus & Sion). Every time one turns up they seem to have a profound effect on the republic and the rest of the galaxy.
"If force is the game, the murderer wins over the pickpocket." Ayn Rand
"Justice is the midpoint between being treated unjustly, and treating others unjustly." Aristotle