A short posted article on DSOGaming states prolific modder "Halk Hogan PL" is making a HD texture mod of 2077. He got some fame for making a similar mod for the Witcher 3. Here is a snip of the article, which includes a WIP side by side comparison video;

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Cyberpunk 2077 HD Reworked Project will aim to improve the game’s textures. And, in order to showcase some of the new textures, the modder released the following comparison video.

Unfortunately, there is no ETA on when the first version of this mod will come out. Naturally, though, we’ll be sure to keep you posted.