This has been discussed before but African Leopard is unlikely. Yet again we should not speculate and African Leopards while exciting for some of y'all, would do little to help the AZA carnivore populations. The wild dogs are already on site and I expect several more species to return in the coming month or two. As well their should be about 5 aviaries with a variety of birds from Asia and Africa although the species are not fully set from what I understand (African Pygmy Falcon are being temporarily held in the bird area for the complex though).
Zebras will not return as the zoo has little space for hoofstock and I doubt they would want to mix them into the savannah exhibit. Especially with prioritization of a large giraffe herd in that space.
Also the website people keep referring to and the associated site plan is outdated. A new site plan has been posted to this site before and while the species have not changed, some of the exhibits have been altered.