Could you elaborate? Even if speculative?
they have a need to work out how they will project and persist their force for maritime patrol and protection
so that means consideration for BAMs light, whether BAMs light means armed capability for the UAS rather than just buddy ISR
BAMs has to be considered as NZ has a huge area of MP responsibility, so can she afford to raise train sustain a comprehensive but expensive relative to threat manned capability where a BAMS companion system would reduce some of the RTS issues on through life fleet support (fleet in the military sense where it refers to any platform maintained in volume)
ditto for maritime rotary, at some point consideration for every capable navy has to be on future skimmer design requirements, "how big does the fantail get?" as manned and unmanned rotary again will also be a necessary combination to consider. its a capability issue, there is a tipping point where manned rotary air starts to lose efficiency due to a number of factors, rotary or even small rail launched UAS can start crossing over as a handover as it has greater persistence, no crew exhaustion and some projection and time on station efficiency issues as no manning factor, bums in the seat can be replaced by equipment.
etc etc... their future force will be very different in 20-30 years out of necessity and the technology around UAS, miniaturisation, companion tech and by association purple force developments