The players have been accused of putting "the whole of Fiji at risk".
New Zealand likely won't play again until the Tokyo Olympics.
New Zealand edged the Aussies despite trailling early in the final.
The next tournament takes place in Vancouver, Canada.
New Zealand are two from two, with wins over Wales and Spain.
The veteran speedster will contest his 90th tournament on the world circuit.
The NZ co-captain will contest his 90th world series tournament next weekend.
The tournament looks set to be rescheduled for October.
The NZ women overcame Canada - and torrential rain - to extend their world series lead.