I do think the Pro 3 is a taste of what Sequential's next synth will be in terms of structure. Which is likely why they did both the standard and special edition Pro 3's in one go as opposed to spreading both of their releases through the year. I can see a Poly Evolver type structure type structure with the VCO + Wavetable oscillators on their next poly synth. Hopefully it'll have more than one wavetable oscillator though. I think only having one is a misstep.
But looking at the specs of the Pro 3....it's there.
Tuned feedback
VCO + Digital Oscillator
Dual effects
Expanded mod matrix.
Playlist mode.
and new looking knobs/layout.
All a perfect hint at what could be featured in their next poly synth.
The only thing I would like to see is a an X/Y/Z touch pad as opposed to a single slider.
Oh and a bit more...blue.
Just to make it stand out a bit more.