You know what would be super cool, but also probably super expensive? Go back to the high-contrast original negative of TRON, before they did all the animation seperation, and recomposite the whole movie with actual CGI (there's CGI in the movie, but a lot of it is just cel animation).

I still love the original movie to death, but I wonder what that would look like. There's already a group who basically recreated the lightcycle sequence, and did it in under a day: https://www.youtube.com/watch?v=T2-yhFTCCzY