They could do so much with the Mission character now that she's grown up.
My vision would be that after KoTOR things went from bad to worse for her and she is now a bitter, disillusioned warrior by neccesity. I can see it now. The scarred blue Twi'lek, bitchslapping anyone who crosses her. Her new philosophy in life? Instead of whining about the world not caring, she returns the favour. You can either show her that there is still good in the world(LS) or completely break her last bit of will and make you into a loyal servant(DS). Possibly story hooks? Meeting that bastard Griff. Spare him? Or convince Mission to rip him into shreds? I think even some good players will chose that second one. Maybe Jedi-trainable? I always though Bastila's line hinted at that. You know, 'she's stronger than she appears'.