Very interesting news, but not entirely upsetting by any means! Christie is extremely genetically valuable, and while its been a while, there's a reasonable chance she should still be viable as a breeder. And Zuri of course, is at a prime age to get pregnant with her first calf. Hopefully they get a move on sooner than later!
I'm quite curious where they might be headed. Call it a gut feeling, but I think it might be North Carolina (unfortunately).
I think it's safe to say Sedgewick, Omaha, Dallas, Tampa, Tucson and San Diego are all non-options. They all have fertile multi-cow herds already. Pittsburgh's ICC is a no-go, Zuri is Jacksons daughter. I highly doubt Fresno, both their cows are likely pregnant by now, and putting two unrelated mother/daughter units together is just asking for them to butt heads.
Technically Atlanta and Maryland both have newer exhibits with bulls and the space for more animals, but both Tuffy and M'sholo are nonbreeders, and Samson is young and unproven as of yet (albeit genetically valuable). It's a very left field move, but I wouldn't be 100% surprised to see them come up to Canada, either. Hogle and Parc Safari have worked together on AI attempts in the recent-ish past, and Junnot is extremely genetically valuable, as an unrepresented founder. Granby of course has Tutume, who is entering his prime at 20 years old, and is also an unrepresented founder for the North American region. Both bulls are large enough to dominate and breed Christie, and both are familiar with dealing with older cows as well.
Edit: Technically Oakland is an option, and Osh *is* a founder for the region as well, but I've heard they're considering getting out of elephants once their remaining cow passes away. Plus Osh is older, unproven, and AFAIK hasn't actually physically shared space with the cows for a very long time, so they would be a very risky option to take, especially considering Christie and Zuri have no experience with bulls either.