Domestics literally are zoo animals though. Most zoos have domestics even if they dont have a petting zoo, as they are 1. popular, 2. easy to keep and 3. can also be endangerd with many zoos breeding them for conservation, eventhough besides the kunekune pig most of these breeds are kept rather locally or amongst only a few countrys.I really doubt we will get domestic animals, that would reduce more options for other zoo animals. I dont mind some domesticated ones like dromedary camel.
Also i think the word your looking for is exotic, all domestics are domesticated. A dromedary really is just another domestic, just like the yak or guinea pig eventhough many would percieve them as more exotic and therefore more worthy. Domestics really feel like the "guys europe kinda sucks can we pls skip it?" stuff all over again from a year ago