Realizing that all the discussion about expansion at MK is pie-in-the-sky hopes and wishes, I still find the topic fascinating. The one thing I can't picture, however, is where they would be able to expand the park. I guess that they could repurpose existing space (i.e. finally put something in the Stitch space, or perhaps replace the Speedway) but let's say that they decide to finally build Fire Mountain or Villain/Bald Mountain (yes, I know, neither are going to happen). Where could they go? In this image from Google Maps, I really only see four places that have open space for building. The red area abuts the monorail line and is on the other side of Caribbean Way, so that's probably out. The blue area is parade storage/staging, so that's out (unless all of that can be moved - perhaps to the green area?). The purple area is behind New Fantasyland, so that seems out and the green area abuts the new Tron coaster, so maybe something could happen there?
Maybe the area on the other side of RoA can be developed? Would be interested to hear from those far more knowledgeable than me what options even exist. View attachment 455360
See...
According to @marni1971, green are the easy pads and yellow and orange require more work to use. The yellow pad south of Space Mountains seems to be off the table since they expanded the retention pond added retention walls.
Red and purple are armchair speculation. Red is a little bit easier and purple much harder, since it would require big changes in water management and maybe demolishing It's a Small World (we can only hope!). Access to orange, red, and purple is very difficult since the placement of HM, RoA, BTMR, and the train leave almost no access to that back area. One of them has to drastically be moved/altered.
View attachment 376156