The Labour-Green bloc has picked up two extra seats and National has lost two in the final election result, making it a more even contest for coalition negotiations with New Zealand First than before.
Two weeks after the September 23 election, the result will be confirmed at 2pm; after the counting of nearly 390,000 additional special votes. When combined with the Greens' 6.3 percent, the center-left bloc won 43.2 percent. The veteran politician is holding the balance of power for a third time, having previously joined coalitions led by both National and Labour.
Labour will pick up one if it gets about 40 per cent of the special votes - its election night result was 35.8 per cent.
This means a Labour, Greens, and NZ First coalition would hit 63 seats - two above the 61 seat governing threshold, while a National/NZ First coalition would hit 65 seats. Labour gained one to 46, the Greens gained one to 8 seats.
Peters, whose nationalist party holds the balance of power, has said no decision will be made until after a final vote count is released on Saturday.
The special vote count could change the number of seats won from the preliminary results on election night and could make it easier for opposition parties to form a government. National fell to 56 seats from 58 on election night.
But National's Nicola Willis and Maureen Pugh will not become MPs.
While National remains the biggest party, the additional seats for Labour and the Greens mean a three-party coalition with New Zealand First would be more stable than first results suggested.
The Green Party's Golriz Ghahraman will come to Parliament.
To form a majority in Parliament, 61 seats are needed.
"Regional development is surely going to figure highly.I think there's no doubt New Zealand First is shifting to be more of a provincial, country party and that the important points are going to be directly related to that development", said Bryce Edwards, political analyst at Critical Politics in Wellington. New Zealand First remained steady with its 9 seats.
Winston Peters, leader of the New Zealand First Party, speaks during a media conference in Wellington, New Zealand, September 27, 2017.
This election saw the highest turnout of enrolled voters since 2005, at 79.8 percent.