Submarines for Superyachts

We are writing four features that will appear in a Special Report to be published inside the Financial Times on May 27th.
One of the four subjects we have been asked to write about is entitled The Future of the Superyacht.
As part of our research we came across this video that portrays what could become the worlds first passenger carrying luxury submarine that could be carried on the stern of many superyachts in the future.
Triton Submarines is currently designing a new multi-passenger submersible capable of diving to the deepest spot in the ocean, the Challenger Deep at 35,800 feet.