Ray tracing and Nvidia Hair works are both confirmed already and i saw a video clip of the game setting system and both Ray Tracing and Hairworks was a option along with DLSS where in the settings of option.

You will beable to enable them if your gpu can support the features.
https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2Fcdn.segmentnext.com%2Fwp-content%2Fuploads%2F2018%2F08%2Fcyberpunk2077_rtx.png&f=1&nofb=1

A Link of the settings for ya. =)

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()(")(") Thanks for taking time and reading my post. <3