I am not entirely sold on a Zelda land. While I think it would be popular because of name recognition alone I don't think there is a lot of substance Zelda could add to a land by itself. For one, what version of Zelda (aesthetically) do you go with? Classic LttP, Ocarina/Majora, Wind Waker, BotW? What kind of rides would work to express "Zelda". A roller coaster seems out of place, a dark ride could work but what would it be centered on? Wind Waker boat ride maybe? Zelda is a tougher nut to crack than Mario is. Or even a Pokemon land would be.