Oh, please!!! How many times do we have to explain MiceChat's error. IT'S NOT AN EXPANSION PAD! It's a support area with room for staging deliveries, trash, and recycling and two buildings supporting costuming for Star Wars Land and it's much smaller than their guestimate. If you tear these building down, you have to move them somewhere else that is reasonably close to SW:GE. And there are fewer options with every expansion.
There are so many details about this diagram that have been proven wrong. It is based on an early concept that had a two-level traffic flow. The alignment of the show buildings was obviously out of sync from the beginning. Yes, it gave us an early approximation of what the land would contain, but it must be taken with a grain of salt. This diagram suggests that the "future expansion" area is larger than the Falcon ride when it is actually more like half the size.