You've given me a great (although I dare say impossible) idea there. Using the same kind of technology that allows people to take reverb impulses of different rooms and spaces to load into software based reverb units, how about a multi-fx unit that allows to you capture the 'essence' of your existing pedals.
Not sure how this would work, but something along the line of sending a pure sine wave through the device whilst sweeping each knob through their full range and back to neutral to build up a 'stamp' of each knobs function and effect.
Probably wouldn't happen as it would put Line 6, Zoom and Digitech out of business.
If you could compete with them you'd have quite the business there! Do I get royalties?