I mentioned the DirectStream as a flagship product. It occupies this space as a result of its innovation, not by incorporating work by others. To succeed its its goal, Octave will be the same. Apparently this reference added confusion, not clarity.
As I understand Octave, both as software and as incorporated into/integral to the upcoming server, it will similarly be a flagship product. As a tagging and library interface it will directly compete with Roon - a complete alternative to Roon, in no way Roon based. As a hardware server, it will similarly compete directly with Pink Faun and its I2S card, with the ZMan card, with the ESI Juli@, a Roon ROCK, etc. To be a flagship, an industry leader, Octave must move beyond these other products and surpass them, not be based on them.
My expectation is Octave will blow Roon out of the water - both as a UI and as better sounding hardware.
I appreciate you like Roon, plan to continue using it, and thus hope Octave will interface with it in some way. Perhaps it will. The Octave server will interface directly with any DAC via USB, S/PDIF, AES/EBU, and with PS Audio (and compatible) DACs via I2S. I expect it will also communicate directly with the Bridge. However, forcing Octave to work with the Bridge or other interface as a Roon endpoint will be a step backward. And wholly unnecessary; Octave will not be a Roon server.
Accordingly, I anticipate the best solution for those enamored with Roon with be continue to work directly with Roon, be it a NUC Rock or otherwise. My guess is the Bridge will continue to support Roon as an endpoint, as well as support MQA. This will allow Roon aficionados to continue using their preferred UI product with PS Audio DACs.
But, once Octave is released, to get the best UI and sound one will have to drop Roon and move on.