I know that Revan's lightsaber model still drops, despite how hard it is to aquire due to it being a level 50 drop pool.

However, I'd love to see a Cartel Market Version of Revan's Purple lightsaber.

As well as, the Red Lightsaber that Revan Reborn uses.

We already got a Malgus lightsaber, despite a similar model being available from pvp vendor.