From www.wdwinfo.com

Rumor: Maelstrom ride to be replaced by Frozen attraction?
Jan 5, 2014

Rumors are spreading around the internet saying that the Maelstrom ride in the Norway pavilion at Walt Disney World may be replaced by an attraction based on the new hit animated film, Frozen. It would be completed in either 2014 or 2015. A larger Frozen attraction is reportedly planned for Disneyland. No official word on either of these projects has been released.