DLC Theory: Probably a stretch but not insane to think about

So I think we probably all know about the immunity relationship thing by now (tarragon is immune to canari, gwynn to Ivor etc), so I was thinking, what are we missing? Dark and psychic specialists. Now I know Naveen is kind of a dark specialist, but based on the pattern if we get another 2 characters in the DLC, it follows that they would use dark and psychic types respectively. And what pokemon is both dark and psychic? Hoopa unbound, presumably one of the most important pokemon in the DLC. I thought this was something interesting to consider, and even though it doesn't 100% fit (thanks Naveen, I love you but you ruined my theory), I think this will be what happens. Plus if the leaks are to be believed, >!Absol and Meowstic!< will get new megas, which could be their aces.