https://wccftech.com/super-smash-bros-ultimate-3-0-0-update-april-19th/

A big Super Smash Bros Ultimate update is currently in the works, but a final release date has yet to be confirmed. According to a new online leak, we won’t have to wait much longer for it to go live.

According to this new leak, the Super Smash Bros Ultimate 3.0.0 update is going to go live on April 19th. It will add support for Joker and Mementos Depth and it will also add the Stage Builder mode and a brand new online mode called Duel Smash.