It was mentioned in a post by Brian on the Roon forum. I can't remember which post but will try and find it.
Hence why I suggest that M let Roon do the heavy lifting of the front end and just adopt the RAAT protocol into the appropriate hardware. Thus limiting the amount of investment needed for such a limited scale return.
It perhaps depends on whether M have realised the number of Sooloos users that have now switched to Roon and what this means. The divorce may not have been pretty but maybe it is time to set up the best future for users of Meridian streaming end-points.
IM(not so)HO...the current Roon UI and overall user experience is now miles ahead of Sooloos. Combined with the stunning sound from M's recent hardware updates I can honestly say my system has never been more satisfying.