yes, this is the thing that threw me off. On the one hand, we had Disney's response which others read as suggesting there was not going to be expansion beyond the then-existing RR track. On the other hand, the land clearing of that patch beyond the RR tracks seemed significantly larger than necessary to be just a "lay down" yard for construction (especially because they had another area already set off for lay down.).So Disney's responses to CFTOD's questions, which we generally interpreted here to mean the project area was not extending beyond the railroad tracks, should actually not be interpreted that way? This would profoundly change our understanding of the project's scope/scale.
The only confusing part left would be the relatively small apparent size of the signature dark ride's show building... but perhaps verticality and/or that shape not containing the attraction's entire area is the answer...
Thus, my hopeful speculation they would use the area cleared outside of the RR for a show building for either the coaster or dark ride.
Fingers (and toes) remain firmly crossed (because the land could be spectacular if they use the full potential of the real estate).