I think the OP’s question has been answered in that interview. Unless one was to upgrade to the NADAC player, they’re gonna need to wait till the Zman replaces the Ethertube in the NADAC for the Roonready feature to be implemented. The Ethertube doesn’t have the capabilities to run RAAT.
Similar situation with MSB. The Blackfin DSP engine in their current Ethernet renderer can’t run RAAT.