I think it's actually a good thing that P Studio is revisiting their previous works....shoot me!
I know a lot of people have been around for a very long time, and this drought makes them feel extremely worn out.
But there are new fans that are born every single day. Their experience does matter, their money matters too!

P3R is so much different than P5R is, but it brings 3 design up to date in a similar fashion.
Which recontextualizes the older game designs, it allows rookie devs to deeper understand why the older games were designed the way they were.
Folding the older games greatest strengths into the new games deeper, more beautiful, expensive modern package is a good thing. Not a bad thing.

I've always thought remakes that are done by/supervised by the original team are worth pursuing, because artists always grow and change, but works do not.
Many artists might vehemently disagree and will wag their finger for their entire lives about the concept of a "remake" being outright loathsome.
But P5R really is vastly different than 3 and 4 are, and in so many ways.
These remakes of 3 and 4 inform all of the new rookie developers who worked on P5, or who perhaps didn't work on any Persona before, on what it REALLY means to make a Persona game.
With the knowledge of why things are built the way they are in the previous titles, devs are far more equipped to successfully move the series forward without losing sight of what makes the series unique.

This is something that has occurred in Final Fantasy as an example with the VIIR series, which being teased since 2005 and announced in 2015, no doubt kicked off the entire Remake trend.
The original games designs are being redesigned top to bottom in a modern capacity.
It allows all the younger developers the ability to actually conceptualize and design a "classic Final Fantasy" game inside of their own era.