The cruise lines have ships displaced all over the world, especially since the 2 largest cruise line been using their ships to get cruise staff and crew back home. There are ships in places where they don’t typically go. For example, Royal Caribbean’s Anthem of the Seas is either on its way to or already in India. That ship normally sail up and down the east coast between New Jersey and the Bahamas, Caribbean, Bermuda, and Canada. So in order for them to start up the cruises, they would need to first get all the ship, crew, and staff back in position. I highly doubt they are going to do that for a simply “cruise to no where” because those cruises are typically used to either introduce a new market to cruising or to fill a gap in the schedule so that ship is carrying passengers every single day its in operation.