Big surprise I know but TW3 "next gen" is delayed indefinitely. It's just a refresh and integrating new tech, how hard is that for a megastudio? It looks amazing as is to me but I realize it could look better, have things like RT and DLSS etc I think it's mainly for consoles but afaik will include a pc release. Mods have probably done a lot for the 2015 release, especially if you look close at times it has some fugly textures but doesn't take much away imo. I only have a couple of small QOL mods for the game. I'm not sure about the pricing but I would imagine they would want full price for it which seems not quite right.
https://www.dsogaming.com/news/the-witcher-3-next-gen-has-been-indefinitely-delayed/