Why?! Just wait for the next-gen version! If you've waited this long already, it makes no sense to play the inferior version now.
If CDPR's next gen upgrade is as good as what 4 A games did recently to Metro Exodus, then it's totally worth waiting for the next gen patch. Exodus is my first exposure to Ray tracing, and while not as "in your face" an upgrade as 30 to 60 fps is, it's not that far off its impact on a game.