According to the Phoenix Zoo's facebook page, one of the yards in Land of the Dragons is now home to a Chinese Alligator. This is the first time in about a decade that crocodilians of any sort have been on display at the zoo.
As of my visit last Saturday night, the far left yard (I think the one pictured here) has a sign saying it is empty. The far right yard had no sign but was also empty with the dragon in the night house (which has glass windows that are virtually useless - even at night there was too much glare to see in).