Some sort of mold breaker tbh.

A ranged phys that is heavy, hard hitting, and slow(think monster hunter heavy bowgun)
A healer that uses their hp as a battery to heal others and heals off doing damage(with some medium cd self heals as a failsafe)
A healer that heals with spells but attacks with melee
etc

Outside of those though, I'd just like some of the jobs for Final Fantasy Tactics Advance. A bow user(Sniper) that doesn't have the song thing would be cool. Assassin could be another scouting class that uses a claw for the weapon.