Well-known leaker from the ResetERA forum, Head on the Block, formerly known as I'm a Hero Too, has proven himself to be familiar with behind-the-scenes information about the Persona series in the past. He talked about the future sixth part of the series.
According to him, Persona 6 is 95% ready. The game has not yet been officially announced, but will most likely be released in 2025. Additions will follow. The new approach to world design is expected to greatly improve upon the formula that made Persona 3 popular, with more fluid social connections, improved interactivity, and fewer time limits.
In addition to Persona 6, ATLUS is also likely working on a remaster of Persona 2, which will include Innocent Sin and Eternal Punishment, and a remake of Persona 4. The former is expected to release earlier, but both will not release until after the sixth installment in the series, so until The official announcement is still far away.