Royal Caribbean’s Icon of the Seas will take the title for world’s largest cruise ship when it begins sailing from Miami in January, and will hold the title at least until 2025 when its sister ship comes into service. The cruise line announced that ship’s name Thursday going with Star of the Seas, which will begin sailing in summer 2025, although details about the ship and where it will be home ported were not revealed. It’s the second in the line’s new Icon class, which the line said would include class-specific features “from the beach retreat to the resort escape and the theme park adventur...