Wanted to weigh in a bit on the Harry Potter vs. Star Wars debate in the theme parks.
I agree with many posters who have said that Star Wars is a larger property than Harry Potter. While Star Wars certainly has the benefit of having been around much longer, there is no doubt that at least at this point in time, it caters to a larger audience than Harry Potter.
But I really wonder about Star Wars Land. I've been to Harry Potter World since the addition of Diagon Alley, and so therefore I have seen the entire experience. And I can honestly say, I've have never had such an immersive experience in a theme park before, and I think Disney will be hard pressed to replicate it with Star Wars.
Universal is lucky - Harry Potter is an incredibly rich universe that lends itself very well to a theme park adaption. Universal simply took what HP already had and ran with it. But we always talk so much about how a good theme park should immerse you fully, where all the elements work together, and in that sense HP delivers on every note.
First, you have the locations. Going from London, to Diagon Alley, to the Hogwarts Express, to Hogsmeade, to Hogwarts itself is a totally immersive experience that closely replicates what was experienced in the books and movies. You truly feel as if you were dropped into this world, and are experiencing it as the characters in the story would. I remember being so immersed in the experience that when I left these lands to re-enter their respective parks, the rest of the theme park felt like reality.
Then, you have all the little things that add up to make a full experience. Buying a wand there is an almost religious experience, and a must-have souvenir. As if the wands weren't cool enough as is, you can now use them to perform "magic" throughout the lands. Then you can buy robes which match the ones that Hogwarts students would be wearing. And do I even need to mention the Butterbeer? They have crafted an iconic beverage that no trip to HP world would be complete without. The main point here is that they took existing elements from the novels and movies, and leveraged them into things that as a total package create a fully immersive and very rewarding experience - and very profitable for Universal.
Which brings me to Star Wars. While I do not doubt that Star Wars Land would be a massive hit, and I myself would love it since I'm a huge Star Wars fan, I fail to see how that land would be able to match HP in terms of immersion. First, there's the very obvious problem of which locations from the movies would you build in the parks? Would you just choose one, or multiple ones? If you choose multiple ones, would the transition between the two be as seamless as the transition from Diagon Alley to Hogsmeade? Would there be a spaceship ride to transport you from one to the other, or would you just walk between them. What locations in Star Wars are truly iconic (like Hogwarts, Diagon Alley) and would be able to be built practically and convincingly in a theme park?
And what about other elements? Would lightsabers be as popular and as magical as wands? While the wands obviously don't have any inherent magical ability outside of the parks, they seem to be more accessible than a lightsaber would be. Will plastic lightsabers with plastic cones coming out from it representing the "blade" be as popular as wands? The thing about the wands is that they're extremely well made - when you hold one, you feel as if you are actually holding a wand, and that adds to the desire to buy one. Would lightsabers be able to achieve that?
And what about food and beverage? We have seen Disney twice (in Cars Land and in Gaston's Tavern) try to capitalize on the Butterbeer fad by crafting their own signature beverages. But what such beverage or food exists in the Star Wars universe? I for one can't think of anything notable. They would need to come up with something entirely new that doesn't exist in the movies. There is no iconic food item in the Star Wars series that people are dying to try in real life.
I speculate a lot of course. Disney is my favorite place on earth, and they never cease to amaze me with what they have done. I have no doubt they can create a Star Wars Land that is extremely popular and has a lot of great elements to it. But on the surface, it seems it will be very difficult to create the same fully immersive experience that Universal has created with Harry Potter. That world just lends itself to the theme parks so well, and Disney will need to pull off something special to do the same with Star Wars.