I'm not convinced it will be a smaller area. Frankly once you get 30 feet back from the burn line it's pretty sparse. I park on the far side of the road and there's never anybody there during the airshows.
While an F16 or a Concorde or whatever may be interseting or mundane to us, believe me it's a draw to the average crowd. My wife runs a large event at the Air and Space Museum. In past years I've put 250 kids in and out of my Navion as one of the exhibit aircraft. This year, United brought a 777 to the event and everybody made a beeline to that. The gate counts were about the same, but I only handed out about 150 cards rather than 250.