Steven Wilson is curating a new platform for audio called Headphone Dust. Would be nice if Roon would steer in this direction to provide compatibility.
From what I have read, Roon can already play their HD Digital Release, and is cited on the website as a supported player.
Since Roon supports neither MKV nor Dolby, the Digital Box Set Version wouldn’t be supported. However, there is a thread in Feedback > Feature Suggestions.