Reggie just took to the stage at The Game Awards to reveal that Joker from Persona 5 will be joining Super Smash Bros Ultimate as its first DLC character (after Piranha Plant).
The character will come with a stage as well as a soundtrack, both which assumed will be from Persona.
Reggie also said that this was a sign of things to come in terms of how they were approaching DLC for Super Smash Bros.
https://www.youtube.com/watch?v=o1ExSvxYUho&fbclid=IwAR32nuCaQ-Splj7it4zlaNp1bETKcRV_ss0e0wUhHbqZJloa1OCXUWCrLeM