If by enhanced you mean something like FFVI iOS, then no.
If by enhanced you mean something like FFI, FFII and FFIV on the PSP, then yes!
I do agree that the PSX games need to be updated. They don't need real time PS4 looking visuals like the developers most likely want to do with a FFVII remake. Just update or enhance what we already have so it doesn't look so ugly.