I honestly hope they DO NOT retheme Lost Continent to a Harry Potter themed land, it's the only island that doesn't have any specific licensing/pre-existing characters and I really like it the best. I see a Harry Potter ride coming before a retheme of the whole area, but that's just my hopes/opinion.
FORMER DISNEYLAND ATTRACTION OP
Big Thunder Mountain Railroad (2009)
Indiana Jones Adventure (2008)
Disneyland Railroad (2007)