I don't think the writers of K3 should feel compelled to write a third Darth Traya into the plot, though - I see no overwhelming need to.
True, but it does sound pretty interesting they left that quote there. Guess it's random speculation.
Jediphile: Actually, my DSM Exile fell to the DS after being "betrayed" by the Jedi Order during the Mandalorian Wars and after being told numberous times that he was responsible for Peragus. The Jedi Order did not fight the Mandalorians, and criticized those that did...which made my Exile pretty upset.
I think that if there should be a Darth Traya, he should be reserved for a Dark Sided Exile.