The Brandywine Zoo in Delaware had a plan to build an Amazon Rainforest Building with macaws, an aviary, tamarins, Dwarf Caimans, anteaters, Capybaras, sloths, fish, reptiles, sakis, coatis, bats, Brazilian Porcupines, toucans, and a Jaguar. It was cancelled, but it would have been a game changer, because it's a really small zoo. They have a master plan that they have started construction on, but this part of it won't be included anymore. The tamarins, capybara, sloth, and Jaguar are in the new master plan, but I really would have liked the building, especially the anteater.
Amazon Rainforest Building:
http://www.zoodesign.co/uploads/1/2/9/7/12979434/9777349_orig.jpg
Master Plan:
https://destateparks.blog/wp-conten...n-Shot-2018-06-08-at-11.23.08-AM-1600x988.png