I was both excited and forlorn about this release. AlphaDream, the team behind the Mario & Luigi series, went bankrupt a few years ago. And Paper Mario has jettisoned itself further from the JRPG genre with each release.
So this could very well be the last official Mario RPG, a remake of the very first.
There is at least going to be a Paper Mario: The Thousand Year Door remake coming out sometime in 2024. I'm hoping it's a sign of more traditional Mario RPGs to come, but who knows. The TTYD remake is something that most of the fanbase thought would never happen, so I guess anything is possible.
I've never been a big fan of Paper Mario, I personally loved the isometric approach Mario RPG took, it really fit the Mario motif better and felt more like a platformer RPG.
So this could very well be the last official Mario RPG, a remake of the very first.