RE: future xbows...........
Sure looks different, I do not think that it looks quiet, smooth looking but I do not think I would say quiet. I actually think that it would sound louder to the shooter as there are more moving parts closer to the shooter.
I also think that this bow could be dangerrous. IF so some reason a string breaks, the limbs are designed to travel back towards the shooter, not out away like the bows of today.
Not for me, let me stay with the simple recurve crossbow.