It was rumored when there was a plan to replace the area behind what was then called Festival Bay (then Artegon now Deezerland) with a "steel park." The push to put in a park is well-documented--that it would be WWE themed was a rumor at the time. I know ScreamScape had it, may have been some other, more credible sources on various boards.Local resident grassroots opposition--and I suspect some Universal astroturfing tho that's never been documented AFAIK--killed the park, allowing the space to become a failed indoor flea market and now a never-opened auto museum.
I tend to believe that at the least discussions with WWE occurred because Vinnie Mac has pressed hard over the years for an Orlando presence, even before NXT. Long-time rumors suggested the old CityWalk NBA City might become a WWE Hall of Fame attraction or restaurant or some hybrid thereof. I still expect something with the brand to open in the tourist corridor one day. but I don't think it will be this. (And really, characters/storylines change so often, the idea of a park always seemed far-fetched.)