Probably 90% of the stuff in that article had already been revealed. They'll be working pre development on WitcherTNG already much as C2077 had a lot of pre dev work done on it before entering full development in 2016...
...to be fair to Schreier though, while things like C2077 only entering full development in 2016 isn't a revelation, that fact was hidden away on an obscure site called, I think, 'wikipedia' (sp?) since like 2017, so it isn't surprising he thought it was news. He's also incorrect on a couple of matters of fact, eg since Raithe quoted it:
there are car ambushes, just not many. End of the day almost every single thing written was either known previous andor is (in many cases sadly) standard industry practice. It's only news because it's CDPR doing it, in particular, the complaints about crunch could be leveled at a lot more developers including some that are journalistic darlings.
Nope. They may well have not even made a final decision yet.
(The rumours were that Ciri, younger 'Vesemir' or near-conjunction create-your-own were being considered. Ciri is a bad idea for various reasons such as requiring 'artificial' depowering but would allow use of popular known characters, 'Vesemir' would be a compromise using a known character somewhat connected to the prior games but set earlier with more flexibility than Ciri, and the last option has far and away the most flexibility but little to no connection to the previous games. Very outside chance: proper TV/ book series tie in)