So reading around the internet, specifically gaf, and listening to the Persona fan cast. There seems to be indications that a PS4 version of Persona 5 is in the works, but they didn't announce it for some reason, likely having to do with the state of publisher support for cross gen development, since the whole deal with Index Holdings folding.
This comes by way of posts by confirmed insiders, specifically related to ones in Sony. Who was posting info about PS4 specific reveals at the upcoming Atlus livestream, then saying that it wasn't happening as expected, but that the PS4 version
My personal opinion agrees with S-Link FM podcast where, system wars aside, is that any of the new gen systems would make for a better experience overall since the OS on both XB1 and PS4 are so much better. They wouldn't even need to try and make the graphics prettier technically, since the Persona series has always relied more on anime stylized characters and world geometry. I suppose having better hardware could help them really push for in-game graphics that look as good as the 2D anime cinematics. But if you look at other games, you hardly need new gen systems for that if games like Ni No Kuni are evidence.
Also interesting are the bigger social aspects of new gen consoles, which will be interesting to utilize given the nature of these games. Much needed features like the suspend and resume coming to the PS4 and already on the XB1 will be great if Atlus decides to make P5 a traditional save point based game. If something comes up during play, or a particularly dangerous floor of the dungeon, you can just suspend the game indefinitely until you have time to resume and get to a save point.