If the park hadn't been the absolute disaster it became as it opened maybe rides that were meant to be built (Indiana Jones & Fantasyland dark rides) would have happened. Granted those would've been clones more than likely.
@Benzin can you please elaborate further on which rides became nothing more than a concept.I like hearing about the history and unbuilt attractions of Disneyland Paris.Providing in depth information on the unbuilt rides and attractions would really facinate me. I have heard briefly about a Little Mermaid Dark Ride that was proposed to be built opposite The Lady & The Tramp restaurant in the Fantasyland section of The Magic Kingdom Park. As for Frontier Land I have heard about an unbuilt clone of The Splash Mountain flume ride. All I know about the clone is that it would have been built adjacent to the now derelict Woody’s Roundup Village. I also know that if Splash Mountain project ever occurred the Frontierland railway station would have been relocated. Finally for the indoor Jungle Cruse like Jeep attraction that would have stood in Adventure Land. I know very little about this cancelled ride. What I do know is that the environment would have been similar to the Jungle Cruse at other Disney parks. The sole major difference was planned to be that you would explore the Jungle by Jeep rather than by boat.