While more Disney is always better in my book, I just don't see a good argument for another full gate. A night kingdom or specialty boutique park, yes, but WDW already got burned twice with that idea, first with Discovery Island and then with Pleasure Island. Sure, neither of them were boutique parks but both were additional places to go offering unique experiences and both failed to meet expectations.
At this point WDW has their hands and budgets full just trying to keep up with their current parks and there's so much room for expansion at each of them. It's not like they can really extend the average person's stay much more - most people get a limited amount of time off from work and a limited amount of money for the same. There's already more to see than time to do it. Plus that park will need all new equipment, transportation, support CMs, etc. SO SO SO much cheaper to just add to the existing parks. Yes, crowds are an issue. But giving them more room to spread out within the four parks will work nearly as well as new gate. MK has all that room in Adventureland, DHS could desperately use a whole new area (I vote for their own Toontown, personally), Epcot could soak up a small nation's worth of guests if they just rehabbed JiI, plussed Living Seas (it seemed cavernous and bare last time I was there), reworked and reopened WoL, and added another country or two. Heck, just JiI would help a lot. AK has room for Avatar (annoyed that's taking over Beastly Kingdom), Australia, and South America if they plan right.
Point being, building out the existing is cheaper, would provide nearly the same return on (a much smaller) budget, and is badly needed besides. Glad to see they are doing that with the FLE and even Sorcerers of the Magic Kingdom (small, but great little plus). Now on to the other parks!
