This is a user-to-user support community where Apple product teams neither read, nor participate. We are users just like you, and Apple does not share future product plans with us either.
You can check current High Sierra Camera RAW formats in the living document here, or press the option key, Click the Apple menu bar logo, and select System Information… and click Raw Support under the Software category.
It can take several months from the time a new camera is announced until the vendor gets the camera raw support code to Apple who then has to test it, fit it into the next beta release schedule, and then eventually issue the new support in a future macOS High Sierra release update.