According to a tweet by Stitchkingdom, the characters from DreamWorks Animation will be appearing as characters to meet aboard Royal Caribbean ships.  This could be the announcement promised at 11am eastern today by Royal Caribbean.  In a few hours, we will know more!

Update: USA Today is confirming the rumor.  Characters will first arrive on Allure of the Seas and then spread to Oasis of the Seas, Freedom of the Seas and Liberty of the Seas.  The characters will include Shrek, Fiona and Puss In Boots from Shrek; Alex, Marty and the Penguins of Madagascar; Po of Kung Fu Panda and Hiccup of How to Train Your Dragon. The characters will appear as part of exclusive special events, parades, character breakfasts and photo opportunities. Characters also will appear in an AquaTheater show on Allure of the Seas, and in an ice skating show on the ship.