Giarffes can be frightened easily maybe the Zoo will let the Rhinos and Giraffes rotate so the Rhinos can interact with the Zebras.
It’s possible. Perth Zoo have geldings, which have been held cohesively with the giraffes (even through calves) without issue.
Hisotrically, there have been fatalities when housing zebra stallions with rhinos (a stallion was killed by a rhino); and giraffes (a stallion drove a giraffe into a fence) within the region - but geldings should be able to integrate with both groups.
Filter gates are also a possibility for nyala etc. to pass through the exhibits for larger hoofstock. Nyala are housed with Auckland’s rhino herd.