A notable Persona leaker has claimed that Atlus is currently working on four new titles alongside its remake of Persona 3.

The details:

Respected leaker @MbKKssTBhz5 revealed on Twitter that, aside from the recently announced Persona 3: Reload, Atlus and its partners are working on a number of new releases, some of which have been in the works for years. This includes Persona 6, Persona 5: The Phantom X, Persona Asa, and an unnamed fighting game, all of which are being developed by those who worked on Persona 5 and Persona 3: Reload. None of the titles in development are remakes of any kind.
The leaker clarified that the fighting game had not been cancelled, as previously reported, but that it had "changed a lot" since 2015 and would no longer resemble the original concept. Due to its lengthy development, it's possible that it was reworked into a Persona 5 spin-off, as has been the case with many recent Atlus titles, with some fans speculating that it could feature characters from all major franchise entries. Although little is known about Asa, it is expected to include all of the main Persona protagonists.
Persona 6 is expected to take a different path than previous entries in the series, with the game being developed by a team comprised primarily of new employees alongside some veterans. Leaks also revealed that it will have a green color scheme and that it was delayed internally for unknown reasons at some point. Atlus is expected to announce the highly anticipated title alongside Persona Asa in 2024, with a full release date in 2026.

More gaming news:

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Multiple Persona titles are reportedly in the works