I'll miss Willum and Brumby - it's been great to have koalas in Chicago and at one of my home zoos. The setup was awkward but they added a splash of new life to the Hamill Family Play Zoo. I did really hope to see a proper feeding sometime, which didn't work out. I'm hopeful the zoo is viewing their stay as successful and remains committed to adding Koalas to the permanent collection when they update the Australia House in the future, although that may be far off now.
I was expecting Ringtail Lemur to take over their former home but moving in Tamandua would have easily been my next choice. I think they're a really underrated species, very kid-friendly between their primate-like arboreal nature and very anteater features, and it's always bugged me the zoo hasn't had them on display, so I do look forward to seeing them. I do hope long-term h that Tamandua, Lemur and Koala remain in the collection but all end up in better spaces.