Good to know that MIDI feedback it is being considered
When you are talking about 'hardware' you mean the midi controllers, right ?
I'm not sure why you would need the actual controller to test this feature?
MIDI feedback is generic and not specific to any controller. The MIDI feedback is typically exactly the same as the MIDI messages that the controller generates.
So when you link a specific knob on the controller to a knob on one of the MOD pedals, (say CC 10), the mod should simply send out a CC message with that same CC id when you manipulate the knob via the gui or the pedal.
Granted, there are other MIDI messages that might be less obvious to implement, but i wonder if these are very relevant for the MOD usecase.
When MIDI feedback becomes available in one of the next releases, i have a couple of controllers (BCR2000 and BCF2000) and i'm happy to help test this feature