Home Planet: The Entire Confection
I really liked U but the DLC was low-key kind of awful. Mario Wonder seems better structured for DLC. I'd definitely pay 20 bucks for an extra couple of worlds.SMB Wonder DLC feels like a possibility; the precedent set by NSMB2 and U gives me some hope, and the Game Awards would be a good place to reveal it.
If I had to put money on it though, I would take the safe bet and go with “Nintendo Switch has games”
Not for just one extra world, though.