An interesting and exciting idea, but I wonder what will become of the residents that lack cold blood?

It sounds as if the nocturnal section, like so many others at zoos around the nation, could be eliminated. Here is an excerpt from my review of Virginia Zoo in 2012:
Small Mammals Building/Reptile House – This structure begins with a Stanley Crane/Blue Duiker yard that has a short glass wall about 3 feet high and the rest is open-topped viewing. Squirrel Monkeys and Goeldi’s Monkeys have glass-fronted exhibits across from the cranes and duikers, before visitors enter a pair of doors and are plunged into a darkened environment that is part nocturnal house and mainly reptile house. Almost all of the terrariums are of average size and quality but the nocturnal section is quite well designed and extremely dark.
Species list (44 species): Ocelot, Armadillo, Northern Tree Shrew, Pygmy Hedgehog Tenrec, Coendou, Two-Toed Sloth, Douroucouli, Black Tufted-Ear Marmoset, Goeldi’s Monkey, Timber Rattlesnake, Eastern Cottonmouth, Bamboo Rat Snake, Northern Pine Snake, Copperhead, Madagascan Giant Hognose Snake, Green Tree Python, Carpet Python, Angolan Python, Arizona Mountain Kingsnake, Eastern Kingsnake, Madagascan Tree Boa, Emerald Tree Boa, Common Boa Constrictor, Rough Green Snake, Standing’s Day Gecko, New Caledonian Crested Gecko, Beaded Lizard, Emerald Skink, Eastern Blue-Tongue Skink, Chinese Crocodile Lizard, Fiji Banded Iguana, Eastern Box Turtle, Axolotl, Rio Cauca Caecilian, Green-and-Black Poison Dart Frog, Blue Poison Dart Frog, Splashback Poison Dart Frog, Milky Tree Frog, Green Tree Frog, Tomato Frog, Horned Frog, Southern Toad, Goliath Bird-Eating Spider and Brazilian Red-and-White Tarantula.