Police Certificates from your home country will not be required in order to file a 2021 Resident Visa application. INZ may still ask for one if they believe it is necessary. They will still be getting a Police Check from the NZ Police, who may not be able to keep up with the large number of requests that they will get from 1 December. This could slow the whole application process down quite a lot.
If you have done an Immigration Medical in the last 3 years, you do not need to get a new one. This is the same as in the current visa rules. If you do need to get a new Medical, then you only have to provide a Limited Medical Certificate, which is a cut-down medical check (and probably cheaper).
Most people who do not meet the Acceptable Standard of Health (ASH) will get a Medical Waiver. There is still an exception to this. If one of your family in the application has certain conditions like TB, or requiring dialysis, or being severely intellectually or physically disabled, they cannot get the Waiver. The whole family's application could then be declined.
If you believe that someone in your family may be excluded from a Medical Waiver for one of these reasons, contact us
for a consultation.