Speaking with the folks over at Digital Foundry recently, CDPR talked about how it's aiming for 60FPS gameplay on current-gen consoles - a feat that it admits will be "extremely challenging" on Xbox Series S in particular.
Here's what Charles Tremblay, CD Projekt Red‘s vice president of technology, had to say on the matter:
"This [the Xbox Series S version] is something that’s next on our radar, 60 FPS will be extremely challenging on the Series S."
To be fair, if CDPR wants to get The Witcher 4 anywhere close to its impressive tech demo, it could be a challenge to run at 60FPS on any current-gen system - let alone Series S. Given that the team's recent showing isn't representative of the final game either, they're a ways off console optimisation of any kind right now.
Anyway, here's hoping that the studio manages to get things working well on Microsoft's cheaper current-gen console, once launch rolls around. Both The Witcher 3 and Cyberpunk 2077 run pretty well on the all-digital system, so we're keeping the faith that TW4 will be looking and running pretty good on that console too.