The NRL needs to consider how NZ brands run against each other - Warriors and either Kea or Katipo are a good contrast - one (mostly) blue and white & with a human mascot, the other either green & orange with a bird OR red & black with a spider (assuming it's a choice between Kea & Katipo).
Crucially, both options leave scope for a 3rd NZ team that has gold or yellow as a big part of it's colours - commonly used by Wellington based teams, and the Central Pulse (Netball) which is lower North Island, and central districts cricket (lower North Island & some of the upper South, minus Wellington) which wears green with yellow & black.