I would hope for an integrated unit. I have the Prophet 6 and have almost pulled the trigger on a desktop to polychain a half-dozen times, but in the end it's yet another stereo audio input to balance and manage along with physical space. It would have to sit on the floor, not a worthy end for such a great synth.
So, while I would applaud the maneuver, a 16-voice unit for stage or studio would be superb and unbeatable compared to the latest analog offerings. Make it 16 voice, add $1500, sign me up.