On one hand its fair to assume that this month has to be the make or break it scenario regarding a Persona 5 port, but i'm confident the backslash and outcry for a port of the game, because Joker is in Smash would become to huge for Atlus and Nintendo to ignore. Because people started to expect a port, when Joker was revealed for Smash.
I see Joker being compared to Cloud alot, but honestly the only thing they share is that they are both protagonists from the game from their respective series that broke into the mainstream.
Cloud was honestly inevitable or well a Final Fantasy rep being inevitable is the better wording, because Final Fantasy had major roots with Nintendo but Cloud was the most requested and well known FF character, while Persona is honestly still a small fry among the other 3rd party characters that we currently have in Smash minus Bayonetta.