It'll probably be quite a while, I wouldn't expect Persona 6 till 2022 or later. xD
In the meantime I'd like an updated version of Persona 3, I've never played that one.
Persona 1-2 released on the same console, as did Persona 3 and 4 (which looked like it used the same engine).
Given how lackluster Persona 4 was plot-wise I wouldn't wish it for P6, but there are pretty good chances we see Persona 6 on PS4 before 2022.
Edit : Catherine Full Body is developed by team zero, IIRC P-studio's current project are unknown, so if they are using P5's engine and considering Sega's renewed interest in the series following P5's amazing results, there are few reasons for Persona 6 to not be in development right now.Last edited by RenCutypoison - on 15 May 2018