With its debut in late 2019, Norwegian Encore becomes the latest and greatest ship in the Norwegian fleet. How big of a deal is the new ship? At nearly 1,100 feet long, 20 decks, and 169,000 gross tons, Encore comes in the top 10 of the largest cruise ships in the world. But that's only the size of the ship. On board you'll find a stunning number of things to do and experience, ranging from the go-kart track that's more than 1,000 feet long and juts out over the side of the ship to a new…