His reluctance to concede in the face of certain Labor victory has drawn criticism from Labor and within his own ranks, prolonging nearly two weeks of political uncertainty.
Annastacia Palaszczuk has finally claimed victory for Labor in Queensland, with the new government to be sworn in on Tuesday.
Ms Palaszczuk said the Labor caucus would meet at 11am Monday, with her new cabinet sworn in the next day.
ECQ has officially today declared the seat, alongside four others.
"The writing is on the wall", one MP told The Courier-Mail.
Liberal National Party incumbent Dale Last says he's retained the seat of Burdekin, south of Townsville, beating Labor's Michael Brunker.
The Electoral Commission of Queensland is expected to formally declare winners in the final nine seats of the state's 93-seat parliament.
In his concession speech today, the LNP Leader is expected to make a likely statement about his political future.
Deputy Premier Jackie Trad is expected to take over as treasurer and Health Minister Cameron Dick is expected to take on an economic portfolio.
"I have spoken to the Whips and requested that a party room meeting be held at 2pm next Tuesday, 12 December 2017".
Mr Nicholls spent the week after the election touring the south-east, holding press conferences to keep pressure on the Premier to not break a promise not to form a minority government.
Treasurer Curtis Pitt is expected to be on the chopping block, amid reports he could be moved into the Speaker's role. Katter's Australian Party has won one seat, and the LNP has won 21.