Fiji would have been a good example of actual fatality rates, as it seems we are going to see a country that will rapidly close in on 100% full infection. Unfortunately the Government there and the health system are already blaming people for not going to hospital as the reason for deaths. Its a government that tends to cover its own backside and "adjust" figures if they were to get out of control.
The change in testing methodology and such means we will just lack the data to gain anything meaningful from it.