Every time I finish my post I think of someone else. I would really like my DS Jedi Knight to have the option of bringing Bengal Morr into his crew. If not on Tython, then later on in the story.
Also, I would love for my Sniper to be able to run around with Watcher X. Perhaps add one of the Revanites as a companion as well. Could be our first Force Healing companion, perhaps.