My armchair imagineering ride would be a boat ride with the villains planning to corrupt other rides to gather minions in order to storm the castle. Ride principals would be Jafar, Captain Hook, Dr Faciller, Hades, and Malnificent. Ride scenes would be Jungle Cruise (Jafar enchants the animals,) PotC (Hook convinces the Pirates to fight with promise of treasure,) TBA (Dr Faciller’s friends possess the critters,) iasw (Hades reveals to the world that this ride is part of his domain, and the children his servants,) Fantasyland Cortyard (battle scene with various hero’s facing off against the villain army,) Castle (Sorcerer Mickey, Fairy Godmother, Three Fairies, Merlin and Genie all fight Malnificent the Dragon,) Victory scene of all the Villains being sent back to villain land and banished from the MK while the others are returned to their ride with a memory wipe.
Will never happen, but that’s my dream ride. Way too meta, and way too risky (could make young children afraid of those other rides.)