We don't have any specific plans for MIDI assignments at the moment. I was imagining users would do this via their DAW controller assignments / control surfaces?
Currently, most of the front panel UI macros are exposed as automation parameters, so you can control these either via DAW automation, or setup/learn control surface mappings for those parameters. That's exactly how I'll be running Waverazor this week at Superbooth, with a Nektar keyboard mapped in Tracktion's Waveform DAW.
I had also imagined the automation parameters was the best route, since you typically (not always) get much higher resolution control information from the DAW during automation... when mapped via MIDI Controls, it then operates at 7 bit, unless you DAW allows you to map RPN/NRPN's to those controls.
In any case, MIDI and Control is something I care a lot about, so if I have missed your point here, please do let me know. Cheers!