The Mardi Gras is still in Barcelona...Carnival should have cruises out of there or Civitavecchia (Rome)...other cruise lines are operating in Europe now...MSC etc
Carnival has stated they will not move their ships OUT of this country ,but they have ships already outside this country, so they can MOVE those ships, outside the USA, around the world to avoid our CDC regulations.
Since the Carnival Mardi Gras is anticipating Caribbean cruises perhaps a port like Cozumel might be considered, since if they get the USA go ahead they can homeport in Florida quickly, which was their original intention. -Tom