Nintendo of America: "Nintendo Switch achieves its best sales week ever in the U.S."

[curl-6]

VideoGameAccountant said:

These results were bolstered in part by the recently introduced Nintendo Switch Lite system and a variety of Black Friday offers, such as a Nintendo Switch bundle that included a full game download of the Mario Kart 8 Deluxe game at no additional charge

This line right here shows how powerful Mario Kart has been and one reason why I don't think Nintendo will release a new one anytime soon. It sells so well already.

Yeah we won't see Mario Kart 9 until the Switch 2 in 2022/2023 sadly.