The "extra styles" section had an empty slot, and it's "extra styles" with an "s". I think we're getting a reveal for that at E3. Honestly I have no idea what style it could be.
Bet with Intrinsic:
The Switch will outsell 3DS (based on VGchartz numbers), according to me, while Intrinsic thinks the opposite will hold true. One month avatar control for the loser's avatar.