According to the Walt Disney World Annual Pass magazine "The Mickey Monitor", a new replacement for Journey into Narnia is planned to open called, "The Legend of Jack Sparrow Experience".
The new attraction is being described as, "a first-of-its kind sensory experience". Guests will be enveloped by the world of the Pirates of the Caribbean films. In this attraction, you will walk in the footsteps of Jack Sparrow. Unlike other attractions that have been in this location, The Legend of Jack Sparrow Experience is not a making of, or behind the scenes, but rather, a first person experience.
Walt Disney Imagineering Project Manager and Show Designer Jason Roberts discussed the new attraction, "this is going to be an immersive experience. We’ll really delve into the story of Captain Jack Sparrow and put our Guests in the middle of it all in new and exciting ways."
"Story is always the most important thing for us at Walt Disney Imagineering. But we’re always looking at new ways to tell the story that our Guests have never seen before. In this attraction, we’ll let you walk in the footsteps of Jack Sparrow."
UPDATE: The Disney Parks Blog has confirmed the new attraction, but gave an opening date of "fall 2012".