The zoo is embarking on a construction project to be completed in 2014. (Two minor exhibits have been permanently closed to make room). It will be a central area - mainly visitor amenities - that includes an upscale restaurant. How upscale is anyone's guest, but I wholeheartedly endorse this because bad food is one of my pet peeves about American zoos. Their current cafe is adequate - better than many I have seen - but not outstanding. (The fruit salad was pretty good as I recall). San Antonio Zoo - Zootennial Plaza
Due to the construction America's largest group of Japanese giant salamanders will get a newly modified exhibit in the children's zone. The Wild Wonders exhibits and Parrot House will also permanently close: https://sazoo.org/general-information/plan-your-visit/construction/