The cruise lines were major participants in the working group that created the EU's interim guidelines, and those recommendations are very similar to what the CDC is looking for, so I would say that the odds of them "entertaining" most of "those measures" to be quite high.   I don't see any inkling of a merger, I see an industry coming together to form a basis for knowledge exchange, much as is done at the USCG Cruise Vessel Center of Expertise, where cruise lines and maritime safety p