Thanks for the video link Julian.
Personally, I would love more import and export compatibility in ZBrush. For example, it would be great if you could export an FBX that contains painted layers as multiple vertex color channels. Then you could paint masks on several layers in black and white Polypaint, and use those vertex channels to create flexible textures in an external renderer, such as Blender's Eevee or Cycles. Too bad Keyshot only offers half-baked vertex color support, purely for ZBrush exports with Polypaint.