Super Smash Bros. Ultimate

The tentatively titled Super Smash Bros. is an upcoming game in the Super Smash Bros. series for Nintendo Switch. The game was announced through a teaser trailer in the March 2018 Nintendo Direct, and is set to be released in 2018.

Veterans

 * Mario
 * Link, with his design from The Legend of Zelda: Breath of the Wild

New characters
Other characters have been silhouetted, but are less clear; what appear to be Bowser's horns and mane, Donkey Kong's hair, and Samus's shoulders are clearly visible.
 * Inklings, with both Girl and Boy designs from the original Splatoon.