"There is material uncertainty on our ability to continue as a going concern," Merlin Entertainments said in its annual report.
Legoland Florida is calling 2020 the "year of the pirate" with new special events, a new ski show, and a new on-site hotel.
Along with the official opening date and new images of the rooms, Legoland also released an animated tour of the hotel.
The promotion will run Oct. 5-6, the first weekend of Legoland's Brick or Treat Halloween event.
Merlin Entertainments, the British company that owns the Legoland Florida, Madame Tussauds and Sea Life Aquarium attractions in Central Florida, is recommending acceptance of a takeover bid by a consortium that includes the Kristiansen family, the wealthy Danes behind the Lego Group.
The pirate-themed hotel is the third on-site accomodation at the Winter Haven resort, and will feature 150 rooms, including four suites.