However, claim spokesman Matthew Hooton said the plaintiffs wanted the hearing concluded well before the 2017 general election campaign. Mr Hooton said he was aware of rumours that the government's lawyers might want to settle, which he thought unfounded.
"There is absolutely no suggestion of an out-of-court settlement. To the contrary. The plaintiffs believe there is extremely strong evidence in favour of their claim and they want it to be heard and judged by the court. In fact, the plaintiffs believe their evidence is so strong that many of them worry it risks being politically embarrassing to John Key's government.
"That's why many of them, being strong National Party supporters, would personally have preferred the case be heard this year so as to be out of the way before election year. But sadly that can't be helped now, given the time frame the Crown Law Office sought."
The Treasury's Half-Year Economic and Fiscal Update last December, in the first formal accounting for the action's effect, noted that the government may be potentially liable for more than $250 million in damages.