I tend to agree that this overhaul seems like a placeholder project, intended to last until the later years of the 10-year, $60 billion investment plan (with $17 billion earmarked for WDW). That said, there's still plenty of land for Imagineering to work with, even if the 1989 animation building remains intact for the long term.
The areas highlighted below conceivably could form a new land/path from TSL over to Sunset Blvd.
Red area (Animation Expansion Office and surrounding back-of-house structures) = 7.3 acres
Blue area (parking garage and adjacent circulation) = 2.0 acres
Purple area (Walt Disney Presents and TSL access path) = 1.44 acres
View attachment 872434
So with the parking garage gone you're looking at 10.47 acres to work with. 8.47 if the garage has to stay.
On average, attraction space usually takes up roughly 40-60% of a land's area. The rest is paths, restaurants, shops, etc.
For simplicity, let's say 50% of this redeveloped land is given to attractions, we're looking at 4.23 to 5.23 acres.
As a frame of reference, 4.23 acres would be enough space for attractions similar in size to
It's a Small World,
Frozen Ever After, and
Star Tours to coexist.
The point is, Imagineering still has viable options on this side of the park—regardless of how long this new/returning attraction is expected to last.