I'm way more excited about FF7R as a huge Atlus enthusiast, having just finished Catherine Full Body true Rin route.
Basically FF7R is remade more than 20 years later, with the same staff. They had decades to think about the game and the franchise, to wonder about what they didn't execute perfectly in the original.
As for Persona 5 Royal, a vast majority of Atlus's games are extremely impressive through their use of symbols and references, and what distinguish Persona, SMT and before Sega, other SMT spinoffs from other great JRPGs is extensive pre-production to nail the theme they choose to explore.
What happens with Persona re-releases is they get a good gameplay boost in a spin-off franchise that has simplified gameplay to allow anyone to enjoy it, but add story to an already complete, and well-thought narrative. The answer in P3 FES was a joke, and Persona 4 releasing so close to Persona 3 had a SoL focused plot with scooby-doo level thriller. I know there are things I will like in P5R, but I highly doubt there won't be any conflicts with the original themes and symbols.
I trust Square Enix thought a whole lot about the challenge they were facing when deciding to remake their biggest success, while I have zero trust in Sega after they dropped every other SMT spin-off to focus on Persona dancing games (none of which have better remix than the original somehow) and chibi dungeon crawlers that have insulting plots.
Both will be day one purchases, but mostly because I can't rely on reviews for P5R after P4 was praised so much.