More advanced asset creation tools is certainly something we’re thinking about but it’s not going to be our focus at first. What we plan on doing at first is relying on external tools. For now the primary way is importing from MagicaVoxel which leverages their excellent tool and allows us to get the other stuff working well. There’s a little bit of documentation about this in the Cubiquity for Unity3D docs.
Looking further forward we’re planning on some advanced in-editor tools, perhaps not dissimilar to what was shown in that video but the other features will have to come first.
Cubiquity will be sold per-seat which is in line with how we sell it for Unity3D as well as how UE4 is licenced.