Labour is expected to give party members an equal or even greater say than the party's MPs in electing its leader in the future - but it is understood to have backed away from the British Labour Party model which gives one third of the vote to trade unions.
Labour's caucus discussed the proposed changes to the way the leadership is decided at a caucus retreat yesterday before the party's New Zealand Council meets on Saturday to finalise its recommendations.
At present, only caucus votes on the leadership.
Labour leader David Shearer said yesterday there was general consensus within the caucus that it was time for the membership to share in that vote - something the members made clear during last year's leadership contest. He said the details were yet to be worked out, including the exact split of the vote.
It is understood the party is debating options including giving slightly more weight to the vote of party members than to the vote of the caucus or at least giving them an equal vote.