Let's get the obvious stuff out of the way. The Subs are currently down for "maintenance". Stars Wars stuff may or may not be on the way. Yada yada yada.
My thought is this: the subs building (and Autopia) take up a ton of real estate for what they do. In the Subs case, it's a very high-cost, low RPH ride for the amount of area it takes up. But at the same time, I love water features in a park, and the Lagoon itself is very pretty to look at. So what do we do about it?
My idea, then, is to take the Subs out, but keep the lagoon itself. This would also mean taking out much of the Subs showbuilding as well to free up space. The Lagoon itself is rebuilt so that it can actually hold water, and Aquatopia is brought over and takes up this spot. The waterfalls themselves will still be around, the lagoon itself remains as a picturesque sight, and the kinetic energy the lagoon provides will remain. At the same time, this should be much less costly to run, and should increase RPH for this area.
The rest of the area doesn't go unchanged, either. Remember how I said we take out the Subs showbuilding? That also allows us to redo Autopia, and shrink it in size. The Autopia station moves over to the area next to the Materhorn (basically recreating the old Fantasyland Autopia), while the area housing the current Autopia station (and part of the land north of this) gets repurposed into a new attraction.
Thoughts on this?