Definitely agreeing with @Frost about Simpsons Hit and Run. Such a classic open-world game from my childhood that I’d love to see rereleased with improved visuals and maybe restored content. At the very least, just to be able to have a copy that isn’t currently located in a closet somewhere right now…
I would love to see Nintendo port and re-jig the Zelda: Phantom Hourglass and Spirit Tracks titles. Especially Spirit Tracks. There’s such fun and zany characters in this small series of games, some great music, awesome character dynamc between Link and Zelda (especially in Spirit Tracks), and it sucks that it’s stranded on the DS for the foreseeable future.
I know those games get a bad rep for the touch-screen controls and linear progression, but that was what hooked me and introduced me to the Zelda franchise. I love 'em.
I’d also love to see a new version of Crazy Taxi released for modern hardware. No idea why Sega decided to skip the entire PS4/XboxOne generation.