Indeed, version 3 which Andrew is working on now will have freeform volumetric sculpting. I'm not sure it's the same thing as hypervoxels although I imagine you could apply any volumetric material to the objects in your staging application.

I've already tried it and it's going to be amazing.

For anyone that likes implicit surface or sketch modeling, Archipelis version 2 just came out and is now available. The interface and texture extraction seems to have been greatly improved.