User blog comment:Mystic Monkey/Olympics?/@comment-27514991-20190208190019

I like the concept a lot, honestly! The switch has some ability to record footage on its own, but that feature seems to be locked in certain games (like Smash Bros for example), and I doubt everyone would have a capture card. This might limit it to whoever can definitely record for both sides, such as having one person with a capture card play against several people on the other team.

It all just depends in the end, as I haven't looked into the specifics of the switch's recording feature, and like you said, we don't know if there will be another Mario & Sonic game.