https://www.techradar.com/news/super-smash-bros-ultimate-e3-2018-release-date-announcement

The Super Smash Bros. Ultimate release date is December 7, Nintendo announced at E3 2018 during its latest Nintendo Direct live stream video presentation.

That's just six months away. It means you'll be playing SSB Ultimate on the Nintendo Switch before the end of 2018, and it's the biggest SSB game in so many ways.