Probably at least a year too early for this question. So far have not heard anything about the ZX2 supporting it, only the new Pioneer DAP supports it (to my knowledge). Potential feature in the replacement to the ZX2? Maybe, but nothing concrete so far, nor do I expect there to be for a while. The same questions as for DSD, who's going to back it, what about the existing non-MQA music libraries for sale right now?