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.
Oni would be great, problem is the rights to it are split between like five different studios and it's effectively abandoned. It's why it's not on GOG, Steam, etc.
It also wouldn't surprise me if the source code has been completely lost, meaning there's no chance of an HD upscale or anything.
Possibly the same situation for Attack of the Saucerman. Dayum.
Oh well, realistically, an upscale and a few improvements wouldn't have cut it anyway.