This is a weird time for the console mfgs and devs. I know from hearing about various dev cycles for major releases mid-gen that both Sony and MS have ninjas they can send over to aid in optimization and most particularly assistance in getting GPGPU to balance the load between CPU and GPU a little better. This technique helps a bit more on PS4 vs X1/X1S due to the stronger GPU and memory bandwidth, while the ESRAM on X1 is too small to be a complete bandaid for that gap.
Practically speaking, Jaguar whether at 1.6Ghz, 1.75Ghz, 1.83Ghz, 2.1Ghz, or 2.3Ghz is in a similar pile of hurt. And only 6 full cores are even fully available for gaming as well. GPGPU can free up some of the CPU bottleneck at the cost of some GPU resources, but obviously is both incredibly difficult vs ordinary engine functionality (does any standard engine even support GPGPU by default, or has it always been custom so far?).
Ideally any design limitations on the 8th gen console versions can be mostly in presentation only, and not affect the scale of the title. In which case I'd definitely support the game being 'fully unlocked and realized' for PC and PS5/XX variants, while the 8th gen builds do whatever necessary to cram their gameplay design into 8th gen even if it means poor distance rendering, with 1/2 framerate NPCs at distances with some clever motion blur to make it less janky.
Hell in the N64 / PS1 / Saturn era we had quite a lot of titles running in the 20s or less. If that's what it takes not to compromise the vision, so be it.
Fans of the game and genre, and CDPR themselves will be much better off by pressing beyond the design limits of making a game that comfortably runs on PS4/X1, as these things take so long to develop that we may not see the next one for 8-10 years, if ever. So it's better that it's a masterpiece on PC/9th gen + pretty rough on 8th gen vs the potential : scaled back across the board in design to be merely 'good' but lacking ambition and scale, to be a solid/comfortably smooth 8th gen title that just looks prettier on PC/9th gen.