This is one key parts of MIDI 2.0. Not saying that they will have that, but if it did that could account for the delay developing this device.
Could it have both motorized knobs and sliders ?
A keyboard might be a nice part of this too, although it would not be an essential part of that sort of thing.
I think of the Korg Keystage, a MIDI 2.0 controller, and it’s shortcomingx with the eight pots. Something with motorized knobs would be one fix for that.
You mean like text that shows what the controls are associated with, also like on the Keystage.