Someone here earlier said they emailed WCS/the zoo about the dhole situation and apparently they responded implying they’d be looking into some way to bring the species back.
I wouldn’t read into that too much, to be honest. I doubt a customer service rep would be able to say or even know what inner processes like animal procurement are happening. I’m sure they just say what is public, and dholes are still on the website and their animal list. As long as it says that and as long as no press release or public comment is made, their response will always be “no plans to change the exhibit.”