I mean hell, Avatar: Frontiers of Pandora is already by definition cross gen because it supports PC and thus has to scale down below current gen consoles.
Regards,
SB
Doesn't it require RT and therefore a DX12U feature set? If so then I'd say it's "current gen only" even in the PC space as the weakest DX12U level PC GPU's are still around the same performance ballpark as the Series S.