Unfortunately no... None of the cool species at least. They did end up adding exhibits for every species up to the greater kudu with the exception of springbok and cheetah- but often not in the spot on the map as was planned.
Plus they've had Arabian Oryx for a while and Somali Wild Ass since 2011 (according to google). That leaves Lesser Kudu, Water Chevrotain, Drill, Hartebeest, Brown Hyena and Springbok as the only ones never exhibited - with Cheetahs at least found in the Ambassador program.
That means the zoo ended up having 14/20 of these future plans animals, which is pretty good.
At the time of these plans, Lesser Kudu weren't yet in the US so I remember being excited to see them on here. They were seemingly in Europe at the time and were eventually brought into the US where they're now found in 13 zoos.
Springbok are the least exciting out of the 6 and were around plenty. Brown Hyenas were in Europe, while Hartebeest and Drill were around in a couple US zoos at the time so all of those wouldn't have been too crazy.
As @DavidBrown suggests, the biggest pie in sky species here was the Water Chevrotain. It's possible at the time these plans were made it was still possible to source wild animals from West Africa where they aren't too rare. Steenbok, Rhebok, Royal Antelope all arrived from Africa to the US for the first time in the 90s/00s and Balabac Chevrotain arrived in Europe as late as 2008.
