Let’s be honest, we all saw a P5 dancing game coming, after what happened to P4, I’d have been more surprised if they HADN’T planned it.
The P3 dancing game is much more interesting, because P3, Like Door-Kun, was mostly dead, interest largely gone, so it doesn’t make much sense to start giving it spinoffs now.
I believe this suggests that the P3 cast will also be returning in PQ2, and that Atlus is likely to attempt another (I believe that makes 3) remake for it after they bring back interest in it. Especially due to how relatively huge P5 was, many people interested in Persona now haven’t played 3 or 4, similar to how 1 and 2 were barely noticed as the fanbase was built around 3 and 4. If this is the case, it brings up an interesting cycle, as the odd games tend to do much better than the ones before it.