Interesting how they've reduced the show buildings behind Philharmagic and Fairytale hall... they must be feeling some heat over the BBB and the Behemoth of Tron.
I noticed that too. Guess they wanted the map to be more "magical". i.e. What you would actually see while walking around. The new version also adds security screening for busses.
Part of a larger map refresh to the buildings of Fantasyland. I guess they wanted to get rid of the giant flat gray roofs in favor of more appropriately themed (if imaginary) roofs.
Here's a comparison. You can also see the new small world entry facade.