The wait is almost over, Roon 1.3 is about to hit the finish line.....
http://www.digitalaudioreview.net/2017/01/coming-over-the-hill-the-monstrous-roon-1-3/
End users wanting to stream multi-channel content to a multi-channel DAC – like those offered by Exasound (e28, e38) or Merging Technologies (NADAC MC-8, NADAC Player 8) – will also be looked after in Roon 1.3 . The new version will offer channel mapping and downmixing to stereo zones as well as support for DSD content.
http://www.digitalaudioreview.net/2017/01/coming-over-the-hill-the-monstrous-roon-1-3/