I guess that'd be possible, but a very workaround so very unlikely to happen.
It would also be possible to make specific socket walls, but the issue there always is on how benefitting is a specific feature or in this case new block for all players, as that in the end will determine if it is being worked on and with which priority. Currently we're still adding more alternatives, then we need a lot of new T3 materials, as that one direly needs love and in the end everyone wants painted blocks as well, as I have heard *g*
So sure - that would work, but I cannot say if that ever will make it to the game.