As it turns out, at least at one point in time, there was going to be a little bit of that particular title in The Witcher 3.
Geralt: "What... What is this place? Is this the afterlife?" Avallac'h: "No. Just another of the realities the Spiral leads through... Technologically advanced, but broken. Dying."
That's pretty much all that's known about the scene, and you obviously shouldn't take it as canon because, well, it just didn't make it into the game!
Maybe they'll do something like that in The Witcher 4, which has finally started production.
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