Not at all...
1. There are limits on how much time people can go on vacation. That limit was effectively hit at 4 parks. Park cannibalization would only increase.
2. Labor. Disney wants no part of more employees. Youāre talking 15,000 with support servies
3. If you were to build a fifth...there would be a growing number of people who donāt go to 1 or more of the 5. Dak, Epcot and mgm would lose traffic and still cost more each year to run.
1) I know the 4 parks = 1 vacation week saying has been tossed around for years, but I do not know any non-hardcore Disney fans who spend a full week at WDW. In Orlando? Absolutely, but only because they will add 2 or 3 days at Universal. Personally, I am a huge Disney parks fan (obviously), but I am able to see everything I want to see, ride every attraction I want to ride, and view every show I want to view in five days. Also, park cannibalization is kind of the point, with MK bursting at the seams and 180-minute wait times the norm for FoP 3 years after opening...
2) I do not really see the argument of Disney will not expand because they do not want more employees. If that were the case, they would never expand at all, as projects like Galaxy's Edge required hiring a ton of new cast members. Also, CNBC reports Shanghai as having 10,000 cast members at the park. Given that some positions are likely redundant between parks, I would think a fifth gate would need fewer employees than Shanghai.
3) This would likely increase guest frequency. If a guest leaves without having experienced everything, they will likely want to come back sooner than if they had seen everything on their trip.
Only if the fifth gate can be as popular as the MK itself or more popular than the other three together. Do you think a fifth gate can open with about 27 new rides?
It likely would not open with 27 new rides, but the whole novelty of a new park would absolutely entice guests. The goal is to better spread guests out, not just push the cramming problem onto a new park.
I never said a fifth gate was the only solution. The second half of my post was about how DHS/DAK/Epcot have a severe lack of attraction capacity on a per guest basis relative to MK adjusted for attendance.