I remember the debate we all had about the size of the felid enclosures judging by the plans. I must say the actual exhibits are a lot better than the site plans.
The new Jaguar exhibit is roughly the same size as the Amur Leopard enclosure at the Minnesota Zoo's Russia's Grizzly Coast making it a little over 2500 square feet. The lion enclosure is larger I believe, and I don't know exactly how big it is.