Super Smash Bros. Ultimate

Super Smash Bros. Ultimate is the upcoming sixth installment in the Super Smash Bros series. It will be a 3-D on a 2-D plane fighting game for the Nintendo Switch and is scheduled to be released in late 2018.

Sonic, along with every other character from the previous installments, are scheduled to return along with a few batch of new characters, including Princess Daisy.

Development
Super Smash Bros. Ultimate was first teased during a Nintendo Direct on March 8, 2018, under the tentative title Super Smash Bros., and was formally announced during Nintendo's Nintendo Direct presentation at E3 2018.

The game is currently being developed by Bandai Namco Studios and Sora Ltd., the same team that developed Super Smash Bros. for Nintendo 3DS and Wii U, with Masahiro Sakurai as the director.