"After the disappointing end to the 2013 World Cup, we recognised the need to rebuild the Kiwis culture," said NZRL chief executive Phil Holden.
"We were pretty confident that Stephen was still the right man for that job but needed to put the right structures around him to help him succeed.
"Winning the Four Nations showed that we are on the right track and it's appropriate that we give Stephen some job security, so he can build towards the next World Cup."
Beyond the Anzac test at Brisbane's Suncorp Stadium, the Kiwis will also face an end-of-year your to England and another trip to the northern hemisphere to defend their Four Nations crown next year.
The NZRL also revealed the Kiwis Anzac Test jersey, featuring the official Anzac poppy emblem and gold trim to the traditional black-and-white design.
"We recognise that the black jersey is a powerful image and something our players aspire to wear, so we don't want to tinker with it too much," said Holden.
"But this is obviously the centenary of the Gallipoli landings, and we wanted to pay respect to that important piece of New Zealand and Australian history in a tasteful way.
"Gold is a colour that has been important in Kiwis history - our first national side were known as the All Golds - so this seemed like a subtle way of making this particular jersey distinctive, without compromising our values."
