I've often thought about what it would take to "update" River's Edge. With minimal changes, what would people consider to be an improvement? Here's some thoughts I've had over the course of the past year or so:
1) Improving South America is a must. It has experienced the biggest amount of loss thus far, even with things many may not even remember. There used to be Macaws on the right as you entered in! I think that a small aviary or two along the path to the Andean Bear habitat would be a huge improvement, as it's quite a long walk without animals from the start. I think also that if the Andean Bear is not viable any longer, moving the Jaguars into the habitat would be an excellent alternative. If Bush Dogs are out of the question to return, I'd probably combine the current anteater and capybara habitat. Perhaps a South American Tapir combined with the Capybaras would be a cool addition to the area.
2) Africa could stay the same and I would have no issues.
3) With Sun Bears apparently as a Phase Out species, and Rimba being old, I would suggest two alternative ways to use that habitat: Clouded Leopards, or a mixed species exhibit between small-clawed otters and gibbons/siamangs. Logistically, the clouded leopard would likely be easier, but gibbons are one of the few animals I feel the zoo is missing on a whole.
4) In the Missouri area, I think it would be a really great idea to add some sort of animal there, like a beaver. There is the space back there, they just do not use it and I think it's a missed opportunity.