Can’t see it on three grounds.
Firstly, what would NZ bring to the table to earn a seat at the table? I cant see anything.
Secondly membership would allow them a disruptive voice on an6 decisions, whether nuclear or not - as already proven over 5 Eyes discussions.
Lastly, with the deep involvement of China in companies and universities in NZ, the risk would high of any research into new technology, cyber, quantum or other, rapidly being passed on to Chinese researchers.