Prime Minister John Key is to undertake a minor reshuffle of his Cabinet.
Mr Key won't reveal if former Justice Minister Judith Collins will be coming back or if it involves ACT Party leader David Seymour.
"I'm not going to speculate on those bits today - you'll just going to have to wait," he told the Paul Henry programme this morning.
The reshuffle will be announced at the post-Cabinet press conference this afternoon.
"It is, I would emphasise, quite minor, most of the Cabinet don't even know. I'm going to tell them this morning," he said.
Ms Collins has been seeking a return to Cabinet after she resigned as justice minister in August 2014 when allegations surfaced she colluded with blogger Cameron Slater to undermine former Serious Fraud Office head Adam Feeley.
An investigation last November cleared her of any wrongdoing.
Mr Key said at the time Ms Collins shouldn't expect to return to Cabinet after the general election in September 2014, but he didn't rule out a ministerial role in the future.
Mr Seymour, a first time MP when he won the Epsom seat, was not given a ministerial role after the election.