During The Game Awards on December 6th, 2018, Nintendo announced a new player to join the Super Smash Bros. Ultimate roster: Joker from Persona 5.
Joker is the first of five DLC packs planned for the title; each DLC pack includes one new fighter, one new stage and music. Each pack is priced at $5.99 USD, or $24.99 USD ($31.49 CAD) for all under the Fighter’s Pass.
Super Smash Bros. Ultimate was released for Nintendo Switch on December 7th, 2018.
Persona 5 was released April 4th, 2017 on both the PlayStation 3 and PlayStation 4.
Source: Super Smash Bros.