There seems to be a delusion at the moment that life will just pickup and carry on like it did prior to COVID. Tourism earned 20% of NZ export GDP. For the next 12-48 months that money is just gone.
Unless a vaccine is readily available in 12 months time NZ will have to decide whether to re-open to the world and accept COVID. Without a vaccine it is here to stay and most of the world has accepted it in some form.
Even if NZ opens the borders tomorrow many of those tourists won't return. No one will want to travel to a covid hotspot for a holiday. To eliminate covid has a cost of over 100 billion and nz can only afford to do that once. Imo people travelling will need to factor in a quarantine period. Many of the high paying tourists are those who would be worst affected by the virus