I did see what looked like flash tube but totally missed the A6600 wishfully thinking it was the A6xxx housing. Interesting nevertheless and perhaps they will have a trigger similar to the TRT or UW-Tecnics at some point.
If you make some kind of reflector, and your strobes are sufficiently sensitive, you might be able to use it in an A6xxx housing. My UWT trigger died on me last trip, and I spent the remaining dives firing strobes with pop-up flash with the LED board still in place of the reflector - there was enough light coming through, and my Retras are sensitive enough that even without the reflector, they fired every time.