I mean is Joker in smash even CANON to the Persona universe or is this just a copy of Joker. Like I mean if Joker getting the letter took place during Persona 5 that wouldn't make sense because they would have mentioned a letter for Joker right? That is where my theory comes in *AHEM* so my theory is that Joker coming into smash probably takes place after the events of Persona 5 I know what you guys are going to tell me "But didn't the metaverse disappear?" Yes, it did so I think Persona 5 The Royale is sorta like an epilogue like Persona 3's *The Answer* but like so much better. So, in my opinion, I think in P5R the metaverse returns with the rebellion of this new female. I mean like this could be a femc like we know that this girl is an alternate skin in Smash Ultimate for Joker. I don't know but, in my opinion P5R will explain why the Metaverse returns and why Joker is in smash and Probably survives the World of Light Massacre with Kirby and Piranha Plant. If you read this whole thing THANK YOU I really appreciate it. Have a nice day.