If Perth’s and Aucklands animals are destined for the same location, theres possibly the option to move Aucklands cows to Perth first, allowing Permai to establish new bonds prior to Tricias death and also allow Anjalee breeding opportunities be it naturally or via a much more straightforward AI procedure (assuming the covid-related issue at Auckland is flying in the semen and not the experts, which wont be much different at Perth).
Once ready, the entire herd can be moved to another zoo.
but im just thinking aloud.
This idea has many benefits. Integrating into a new herd will be less daunting for Permai if she has the support of two elephants she's known for a couple of years; and by the time Perth Zoo are ready to transfer Permai (upon Tricia's death), the Werribee facility should be up and running (and could also be an option). I'm sure Perth Zoo would be thrilled to welcome an elephant calf in the interim if that eventuates during the timeframe.
Having visited Perth Zoo, I was very surprised at the lack of space their elephants have. Doubling the female herd might not be viable; but given the time frame is short term, it may well be justifiable. Relocating Burma and Anjalee to TWPZ might appear the obvious option; but the fact they haven't announced it means they're open to exploring other possibilities - of which this could well be one.