Where would a Wellington team play? Is there a decent stadium to use?
I cant see Christchurch being big enough to host an NRL club despite the lovely stadium they are building, and the idea of a nomadic team moving around two islands seems fanciful at best.
Wellington and Christchurch are effectively almost identical in size. Both have 450-500k population within easy access of the stadiums.
The Waikato region has a similar population but it’s a bit more spread out (still probably 400k within 50km of Hamilton though), but it’s also adjacent to Auckland so would cannibalise Warriors crowds.
After that you’ve got a big drop off to places with <200k population bases.