I was emailed a survey (which I took) from a marketing firm on behalf of The Living Desert. It reveals some really interesting possible future additions (with an accompanying artist representation).
The first two were each detailed separately and prominently (with several followup questions), leading me to believe they are the most likely to happen.
One is Park After Dark, to offer extended evening hours. (Summer night openings are one of my favorite things and I am 100% in favor). The only thing I may not like is they hinted you would have to be on a guided tour and not be able to explore on your own. The accompanying graphic shows the lion exhibit with lights, which makes me hope the lion exhibit will be built very soon.
The second prominent exhibit is Madagascar, which mentioned lemurs and fossa. No mention of which species of lemur but the graphic showed ringtail.
Next were four possible areas all listed in a row with only one followup to vote which one you like best. This makes me think most of these may not happen or at least are in the distant future.
Treasures of Cortez (Sea of Cortez aquariums)
Gobi Trek (snow leopard and taki)
Sweetwater Creek (grizzly bear, bison, bighorn)
Journey to Sahel (antelope and cheetah run)