I'll put this here, in an attempt to keep the 2017 thread clear for actual construction or rumors.
The new cave/bat ride could be this:
They would construct a pseudocavern above ground. The queue could be packed with interactive/educational kiosks and decoration. Spelling lighting and sound, along with dripping water and speleothems are a must. This indoor portion of the queue would be kept, of course, mostly dark.
Once secured into the vehicle, the wing coaster tunnels and climbs, still in the dark, and somewhere during the first drop, it exits the cave, bursting into the sunlight (or starlight) with the bat colony, along with some nice sound effects for unsuspecting people walking by off-ride.
Name possibilities: Batburst, Escape, Nightwing, The Echo, Microchiroptera Mahem