The Edge-class party won’t be done with the debut of Celebrity Xcel later this year as a sixth ship in the popular class was just ordered by Celebrity Cruises’ parent company Royal Caribbean Group. The agreement,

Norwegian Cruise Line will follow up its Prima-Plus class with its largest ship class to date. Fincantieri has received a firm order for the construction of four new Norwegian cruise ships each with a gross tonnage of approximately 226,000, which will make this new class of ships the largest ever built for the cruise line.

Norwegian Line Holdings (NCL) and Italian shipbuilder Fincantieri said on Wednesday they had agreed a deal for four new cruise liners, which a source close to the matter said was worth around 9 billion euros ($9.

Norwegian Cruise Line had already announced it was planning to compete with Royal Caribbean in the big-ship game, but details on just how big its new Pinnacle class would be were revealed Wednesday. In a press release from Italian shipyard company Finacantieri,