I am late to the party (still waiting for the next batch) and have just gone through some older posts. And I have found Jaak has been considering some new touch modes (sample rate reducer / bit reducer and disintegration loop, both are my favorites) and filter resonance control via MIDI CC. I am starting to think the possibility to control it with an external controller.
First all, it is always important to get the hang of the pedal manually. Muscle memory is crucial. And one can always tweak and save presets. But I just think sometimes it is more convenient to control it with MIDI. For example in some live circumstances or when you need to tweak or fine tune the params a lot.
Of course one can control it with in DAW or more easily the M4L device, but a mobile MIDI controller should be more convenient for live. I think things like Faderfox EC4 might be good for this because one can set the parameter name on those screens. But since Ribbons is so deep and sometimes complex when it comes to things like Tape Noise, Reverb Placement and of course Touch Mode, I think maybe iPad is a more user-friendly interface for this. Other pedal companies like Meris and Red Panda have made TouchOSC template to make it easier to use. Let alone the Eventide stuff. I think it is a great supplement for a deep pedal because one can design to template to have more information than just a param name, and also switch them between different modes (not sure though).
And I think another important thing for this is two-way MIDI (I am not sure about the jargon), which makes it possible to always show the real-time params on screen. I have owned Source Audio pedals but eventually get tired of it because the one-way messaging with the mobile editor app (and also the less impressive UI of the editors).
So those are some random thoughts on the topic. I wonder if anyone else has similar ideas.