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Maybe I hate to say since universal we are talking an NFL experience something similar to the Steelers country at kennywood park in Pittsburgh? But this would be much larger in size. Perhaps a football field that seats people while your playing an interactive game or games. The Orlando NFL Experience Bar & Sports Arena.
Other than a partnership with Rosen Shingle at Universal's main golf couse and MAYBE having Top Golf/Andretti sign as partners, I don't see Universal wasting space for an arena. IF Disney's NBA Experience works out, the NFL or FIFA is the way to go.
I think if you put in a nice resturaunt/bar upscale and a sports arena with interactive games would do just fine something similar to the former ESPN zones that are’nt around anymore just a little better quality.