I am betting on a full replacement, and for the project to grow as it moves along. I'm sure Disney dreams of a short re-do, and to have it back by Christmas, etc but reality sets in. I'm sure they know every inch of the current structure and the shape it's in and what it will cost part by part. I'm sure that there have been endless cost reports and power-point decks, and everything else, but at the end of the day this is a roller coaster, the top attraction in the park, and one that they cannot short change. Even if they begin with a smaller scope I bet it grows during the project. I predict that this one will amaze when it's all done. The last thing that Disney needs is a disappointing attraction to emerge just as IOA is gearing up for Harry Potter. They won't let that happen, believe me. If there is an attraction that defines the Magic Kingdom for may folks, it's Space Mountain.