I'm confused- There are many people referring to the CB Princess. Do they mean the Caribbean Princess? I would think that it would be abbreviated CP & not CB.
That's a new one on me, maybe it's a new ship they're planning? The only ones I know of are: Tahitian, Royal, Regal, Sun, Sea, Dawn, Grand, Crown, Caribbean, Emerald, Coral, Diamond, Golden, Grand, Star, Pacific, Ruby, Sapphire, and Island. Don't know what CB could stand for out of those.
Since there are three ships in the Princess fleet that start with "C", they could not abbreviate all three as CP. Therefore; CB would be the Caribbean.
I think Cruise Fanatic's got it; besides, Coral and Crown are only three more letters--why abbreviate them. And CB is a lot easier than trying to spell Caribbean.
And Penny, sadly, you can take Regal off your list; she's done her last cruise for Princess and is in drydock being refitted for P&O Australia.