They should then make ports between the outdoor and indoor exhibits. With the fake savannah stone walls indoor and outdoor. And what they did at the San Diego Zoo is use the fake stone walls and make the ports also stone-like, making it look more naturalistic.
Another exhibit I would love to see redone is the Red Panda exhibit. It's one of my favourite animals, but it's really difficult seeing these animals. I think the shape of the exhibit is fine, take the idea of fake stone wall as the backdrop and have mist slithering down the stones with little ports throughout the exhibit for the pandas to come out. The majority of the exhibit are hills and rocks that act as ports for the animals. I would probably make it identical to the Red Panda exhibit at the National Zoo. It's really well done at the zoo and put ferns and a stream.
The zoo should also fix the decor of the zoo, such as adding newer plants and trees and the front gate should be redone into something modern. Perhaps flags or big signs. I don't like the wooden entrance @_@ IMO.