BlackMagic RAW has been announced as a new feature of VEGAS Pro 19. ProRes RAW is not mentioned on the official feature list, but... maybe y'all should try importing a clip? ;)
VP19 on the trial let me drag a prores RAW clip from an Atomos ninja V onto the timeline and created a proxy file for it, and it let me play it. Not sure what else to do from here since I'm new to RAW editing.