As cliche as it is, I of course want to have yet another dark, mysterious character, like Auron or Shadow. Preferably more like Shadow.

Also, I'd like to have a character a bit like Kuja, smart and sophisticated, using others for his own gain. However, instead of this character being a central villian, I want him to be a playable character, who is helping the party reach their goal, but at the same time using them to fulfill his own goal. That would be the best.