I was confused by some of the fan's surprise at P5 the Phantom X's recent trailers, but then I have to remind myself that not everyone is going to hear about whatever when news first drops of something. But, yeah this game was announced a while ago. I think back in Persona's 25th anniversary or before, I'm not sure, but it's already been a few years since.
Atlus, or more like P-Studio, is supervising the Chinese dev team on the game. Although it still doesn't make me all that excited for it. Ya' know, I wasn't surprised about a mobile game being developed when they first announced it. P5 is Atlus' cash cow right now. BUT, I was surprised to see it still alive! I completely forgot about it for a while, until I saw the new trailers!
Now, onto the cash cow of Atlus. Like, I love Atlus games, but for those who have been long time fans of them, we know they can and will be greedy (Just look at their fucking DLC pricings!). So, of course they are going to spend years on milking Persona 5, their highest international selling Persona AND Shin Megami Tensei game! Hell, I will not be surprised if there is still a few more P5 projects being planned or being developed!
. . . I doubt P6 will come out anytime soon. Am I being too pessimistic? Maybe. We just gotta wait and see. Wait and see for a lot of things. Yup, a lot of things.