While the trailer didn't confirm whether this is an entirely original Mario Kart game as opposed to another expanded port of Mario Kart 8, there's some new details that people have picked up on.

Initially, people thought that the trailer was featuring Mario Kart 8 Deluxe to show the new console’s full backwards compatibility, including compatibility with physical Nintendo Switch game cards.

Mario and friends can be seen racing against each other in footage that was part of the console’s trailer ... vehicles not available inside Mario Kart 8, the current iteration of the series.

TL;DR: Nintendo officially unveiled the Nintendo Switch 2, featuring a potential new Mario Kart game. The trailer hinted at an ... sense considering Mario Kart 8 is now more than 10 years old ...