You'll never guess what, right. Nintendo is making a new Super Mario game and a new Mario Kart game. Cross my heart! I can't give you any real useful details about either, okay, but I swear it's true, Nintendo really is making more games in those long, long, long-running series. May Queen Elizabeth herself strike me down if one word of a lie has crossed my lips.
As for the new Mario Kart, we know even less. It'll be playable at E3. And that's all we know.
Check out the Nintendo Direct stream for the low-key announcements.