You might remember when, back in early January, Atlus promised a Persona-related announcement sometime this month. Well, they've finally confirmed the date for said announcement on Twitter: tomorrow, the 23rd of March. It'll come shortly after the final episode of the Persona 5 anime series is broadcast at 8:00 pm in Japan, so check your timezones.
In case Twitter's translator isn't working for you, here's a rough translation:
3/23 (Sat.) 20:00, waiting for the TV anime [persona 5] special number sequel [Stars and Ours]! Finally, it is the last battle of the Thief of the heart! In addition, there is a new follow-up after the end of this story..
#P5R. Guys, don't miss out! #p5a https://p5a.jp/onair/ (The ※ PREVIOUS release of CM will be released by ground-level broadcasting)
So it looks like we'll finally find out what Persona 5 'R' is. The current speculation is that it's an enhanced, upgraded version of Persona 5 kind of like Persona 4 Golden was to the original Persona 4. The announcement video from December did mention "New Projects", which suggests more than one announcement.
There's also the ongoing rumors of a potential Switch port after December's surprise announcement that Persona 5's player character, Joker, would join the Smash Ultimate roster as a DLC fighter. Perhaps we could see Joker's moveset in action or a release date? Honestly, I'm just speculating, but I'd love to see them port more Persona games to Switch since they're massive JRPGs, a good fit for something handheld like the Switch. Either way, it should be announced sometime around mid-day tomorrow for us Brits and if Persona 5R does turn out to be what we're expecting it to be then I cannot wait to waste another 100 hours on a game I've already played through three times.