I was thinking of the internals. While I can't speak for Roland, I'd venture that the internals for two of the units could be combined with a recorder to an SDHD and a touch screen LCD to make an R44 replacement. That unit could even have a USB feed as an option. If I was the Roland product manager, that is where I'd be heading leveraging the hardware and software design work already done. My guess is that is what they are doing and it would be 2012 release.