I believe this will mostly affects games which were lacking in technology.
I'd personally LOVE to see The Sims 1 or The Sims 2 re-released with performance and resolution upgrades, and, most importantly, made to be open world. Since they're older, I believe they could very easily render the entire map like The Sims 3, but with the charm of TS1 or TS2.
I cannot think of other games, since most games I see as adequate, whereas TS1 and TS2 were bound by system performance during their respective times.
Chrono Trigger, Chrono Cross, and that one fan-made sequel, Chrono Trigger Crimson Echoes.
I'd love Cross if they could clean it up a bit. It's too avant garde for anybody to enjoy outside of true fans, I feel. Like, what's with the interchangable 50 character roster?
Are they all just divisible by one another in Serge/Robo/Lavos' bizzare meta fever dream? I still can't follow what's going on.
I must admit that I haven't really played a whole lot of Chrono Cross. Not even back when it was new. When I tried getting into it via an emulator, I was majorly put off by how pixelated it looked (especially when compared to the PS1 version of Chrono Trigger). The late 90's JRPG camera angles made traversing maps difficult too.
All that to say, I tried to love Chrono Cross, but sadly, it didn't age that well. Thus, I wholeheartedly agree with you about it needing an improvement. I didn't play it enough to say much about your complaint about it, but it sure hell could use a bit of a sprucing up in the graphics department.
On related side note, comparing FF7, FF8 and Chrono Cross, all of which were released within the same handful of years, I can't help but be amused to say that FF8's graphics fared the best of all three, though that's not to say anything about it looking like a work of art. There's just something about that era's graphics that didn't age well. Compare that to the late SNES era graphics (Chrono Trigger, FF5, FF6, to name a few exemplars) which is still pretty much an aesthetic.