Register .nz Domain

Hello.

As you know, ".nz" domains cannot be registered with Route53.
Also, I don't think it has been announced when it will be supported.
https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/co.nz.html

If you have a contract with AWS Support's "Developer Support", you can request features, so I think it would be a good idea to request it from there.
https://docs.aws.amazon.com/awssupport/latest/user/case-management.html