From Behringer FB:
"What an exciting day!!! The PRO-800 is alive!!!Some time ago we started a wonderful journey with the famous synth designer GliGli who rose to fame for his highly respected improvements around the Sequential PRO-600.
Together with GliGli we have taken this beautiful synth to the next level. The PRO-800 is now an fully polyphonic, 8-Voice Dual VCO synth with many new features.
We’re working hard to get it to you below US$ 600 while shipment is targeted for coming January."