We could see a final rematch in the quarter-finals. This is probably worst case scenario for the All Blacks. There's a huge chance All Blacks, South Africa and France are on the same side of the draw.
Quarter finals - if goes as expected
Pool A winner (NZ) v Pool B winner (South Africa)
Pool C runner up (Fiji) v Pool E winner (France)/Pool D runner up (Scotland)
Pool A runner up (Australia)/Pool E runner up (Japan) v Pool F winner (England)
Pool C winner (Argentina) v Pool D winner (Ireland)