It depends upon if the programmer (not Roy) for QTRGui is able to support new printers going forward or not (so far yes but there is some concern there). Also, if/when we can get the windows (a windows) version working directly with ICCs.
That said, for those who buy PiezoDN and just want to manually convert to the ICCs, you are welcome. I can provide a .zip file with all the relevant stuff except the OS X bits. The workflow is not officially supported yet though.