Vinny, that is very true. If David Marlow is anything he is innovative. I would not expect him to carry on business as usual for Mainship. The reason for the question mark in the thread title is that I'm not even certain that it will come out under the Mainship name. Also the tunnel in the hull looks like it may be a single screw with twin keels. It is going to be interesting to see how this develops.
After another look, there is another propeller tunnel, so it must be a twin screw. That could probably be modified for a single.