Stitch Kingdom. This is what they said:
According to the report, the dragon has been making monthly appearances at the airport where Disney has been renting a hangar, golf cart and other paraphernalia and plans to ship the dragon (not fly it) to Orlando later this summer.
While all signs point to possible research for Avatarland at Disney's Animal Kingdom, one commenter on the original photo in May says its not Avatar related, though she wasn't sure what the intent was. To her credit, she was also able to note the flying puppet would be able to breath fire as well as that it would return to the airport for further testing in June/July.