(4:35 p.m. EST) -- Another world's biggest cruise ship is on the way, with a sixth Oasis-class ship set to be delivered in the autumn of 2023 after Royal Caribbean announced it has entered into an agreement with shipbuilder Chantiers de l’Atlantique.

The yet-to-be-named megaliner will follow sister ships Symphony of the Seas, Harmony of the Seas, Allure of the Seas and Oasis of the Seas, which are among the largest cruise ships in the world.

“This order is a reflection of the exceptional performance of this vessel class and the extraordinary partnership between Chantiers de l’Atlantique and Royal Caribbean Cruises Ltd," said Richard D. Fain, Chairman and CEO, Royal Caribbean Cruises Ltd.

It will be the 23rd ship that RCL has had built at the French shipyard. The order is contingent upon financing, which is expected to be completed in the second or third quarter of this year.