Going from their existing RED engine to Unreal is basically the same idea. Almost nothing from the original Cyberpunk game is going to be easily translated to the new platform. I think CDPR just set their development timeline back by at least 3 years.
There’s an old adage in programming that you should almost never rewrite everything: https://www.onstartups.com/tabid/3339/bid/2596/Why-You-Should-Almost-Never-Rewrite-Your-Software.aspx
Going from their existing RED engine to Unreal is basically the same idea. Almost nothing from the original Cyberpunk game is going to be easily translated to the new platform. I think CDPR just set their development timeline back by at least 3 years.
This is based on the assumption that they’ll finish the game before releasing it.