Surely, if Alliance F50 fleet were on NZ AOC they could fly almost anywhere on a charter basis, as often as they wanted without any interference from CASA.
Plenty of ports with stuff all or no services at present, might be able to get at least low frequency service.
Allegiant in USA< starting flying from one horse towns to Vegas & now look at them. 60 odd jets (MD80, A319's & B757's)