Technically, if they wanted to invest, they could extend the waterway between FFL and MIB and build a small drawbridge over it.Actually, IOA is the park that has the ability to float a barge in and out of the lagoon for a show. USF doesn't have anywhere they could stash something completely out of sight.
However, I don't think Universal/Comcast would see that as something worth investing in and it would be eating into land where they may need to put a HHN house in the future.