I mean, that's kinda cool, but not all that complicated. Really just Les Paul with a piezo bridge, sustainer, and hex output for your Roland MIDI rig. For standard guitar sounds there's still only three options and an active tone control. In fact, the sustainer will defeat the neck pickup, so when it's on you've got one magnetic pickup and some tone control.
It would be a lot more flexible if they had series/parallel/split options for each of the pickups. Add a series/parallel switch between the two mag pickups and maybe a phase switch. I guess I'm not completely sure if the Fernandez system would support either of the S/P options, but...