We already know Mario Tennis is returning with Mario Tennis Fever, but what others do you think we'll see?
I'm pretty sure Mario & Sonic is dead due to the IOC abandoning it to persue NFT iirc. Apart from that, I don't know. Maybe Baseball? To be honest, I never really cared for Mario Sports spin-offs.
In terms of consistency across consoles, Golf is the most common Mario sport game besides Tennis, with it also getting a new release on the original Switch, so I suspect that one the most. Maybe they'll whip up something new for the other more dormant series though; I can imagine them taking another crack at a mix game like Mario Sports Superstars.