Cyberpunk 2077 is getting an update to version 2.0 on the same day the Phantom Liberty DLC releases (September 26). Here’s the list of what’s included in 2.0 vs the items you’ll have to pay $30 to get with the DLC.
https://kotaku.com/cyberpunk-2077-phantom-liberty-update-2-0-free-patch-1850797911
I strongly believe them because they’re switching to UE5 IIRC. They’ve got other games to work on and any tech developed here likely won’t transfer to newer projects.