No, not really. According to TEACOM, Tokyo Disneyland is still first with 16.6 million guests in 2017, followed by USJ at almost 15 million and DisneySea at 13,500,000. While it didn't make USJ the most attended theme park in Japan, I agree that Harry Potter gave the huge boost that the park needed and it brought more than 2 million additional guests in 2015 (the year after it opened). The huge crowds that the park attracts will likely continue to rise though due to the Minion Park being insanely popular since it opened last year and will peak with Nintendo World and the Tokyo Olympics in 2020. TDL on the other hand has
lost more than 1 million guests since 2014 so I wouldn't be surprised if USJ overtook it in 3-4 years (although that may not be the case with BaTB in 2020 and Fantasy Springs in 2022).
You said it. There are two Toy Story
rides in both parks. Not an entire mini-land. Here we have a mini-land dedicated to Peter Pan but still have Peter Pan's Flight in a park just across from the entrance to TDS. The two Toy Story rides at least have different stories. Idk maybe the OLC will make a different plot for the Peter Pan ride in TDS and leave the original one in TDL (highly unlikely if you ask me). With the BaTB area opening in 2020 it will be a good idea to overhaul Fantasyland and finally close the original to make way for something new.
Yeah this was scaled back too in 2016 along with Norway/Arendelle. If Peter Pan and Snow White were to be removed though and wouldn't free up a lot of space IMO (IASW has a massive show building) and it would also make the Philharmagic/Pinocchio side of Fantasyland look out of place. My bet is that if the OLC announced it, it would take over Toontown (sorry Mickey
) since there is already a dark ride there and the land is pretty good-sized for such an expansion.