Prediction: Mario Kart 9 won't release until a decade or more after MK8

[Jumpin]

Anyway, this is one of those predictions that takes into account data, niche, and business motivation for releasing MK9 on current gen Switch.

Considering Nintendo hasn't said anything recently, even if they did have MK9 in development, it's possible they shelved the project. This COULD have been what Retro was working on before, or at least developing some content for.