Unless you’re counting the Super Mario Maker games, the last time Nintendo released a new mainline 2D Mario game was with New Super Mario Bros. U in 2012.
As per known Nintendo insider Zippo, the Nintendo EPD team in Kyoto is working on a new 2D Super Mario platformer.
Reportedly, Nintendo will also finally unveil the long-rumoured Switch ports of The Legend of Zelda: The Wind Waker HD and Twilight Princess HD as part of the Direct presentation.
The game will supposedly feature a new art style “that will take some people by surprise”, and include online multiplayer.