The increased tax revenue will be consumed by the infrastructure the district was required to build, and the land the district the was required to purchase.
The district nets
nothing out of this. Per the district's charter, they can't:
Section 24. Ad valorem taxes.—The board of supervisors shall have the power to levy and assess an ad valorem tax on all the taxable real and tangible personal property in the district to pay the principal of and interest on any general obligation bonds of the district, to provide for any sinking or other funds established in connection with any such bonds, and to finance and defray the cost of any of the projects or activities of the district authorized by the provisions of this act or under law, provided that the district's ad valorem taxing authority shall be limited to serving or benefitting the property owners of the district.
Any ad valorem taxes collected by the district has to be poured back into the district to "benefit the property owners of the district", i.e. Disney.