Probably not before the official "next-gen" versions are released... the ps5/xsx "enhanced upgrades" wont release until a few months later, so probably at that point they will announce HDR support for next-gen consoles, and Id bet PCs will get an update around that time too... Personally I dont think HDR is as big of a deal as Ray Tracing, since HDR is can vary from TV to TV anyway
Also Dolby 7.1 is pretty standard these days, especially for a game with a soundtrack like CB77 (not sure about Atmos though)