It would be really cool to have something between the R16 and the ZED420. Something like a studio-version of the ZED420 (or 428) without USB, but with parametric EQs, MIC/LINE Switches (!) for mixing and a control room matrix for at least 2 sets of monitors.
I think that would be great for people that don't need an audio interface, converters and MIDI.
And looking at the price tag of the current models - no competition out there!
Well ... at least build one of those for me

And call it noiZEDlab 420