Chrono Trigger is possibly the best video game of all time*. Probably the best video game of the 20th century, almost definitely the best Super NES game of all time.
If it gets remade, they really just need to enhance it to HD2D like some of the other recent remakes. Spruce up the dialogue to flesh out character motivations and so forth. Add more content in the underutilized areas like 65,000,000 BC. Maybe even make 1999 AD explorable somehow, even if it's only during one of the endings. But generally stick pretty close to the original, only with modernized visuals that make it look the way our brains remember it looking.
What I DON'T want is for them to radically alter the game in any way, from changing the characters ability lineups to making it a Trials of Mana type 3D escapade. And for fuck's sake don't divide it into a trilogy of games over a 7 or 8 year release window like what happened to FF7.
* - I'd put Bioshock and Elden Ring over it, myself. Bloodborne, Super Metroid, Xenogears, and Final Fantasy Tactics also might all be in that bracket.