This was posted 20 pages ago.
The SW area will be built using the existing buildings around Echo Lake. The dark areas are the attractions/guest areas that will be removed. Everything else is simply being re-themed/skinned.
The original plans were to just add the Falcon and convert Backlot Express to the Cantina and, rather than being truly innovative, they just expanded the area to include all of Echo Lake.
When it was explained to me, I was shocked that you can basically see the entire layout in the concept art. The layout is completely consistent in each piece of concept art.
The only thing not known was where exactly the second attraction was going, or whether it was new or just an updated Star Tours.
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