One Nation leader Pauline Hanson may be set for a political comeback, as she leads the Queensland election count in the seat of Lockyer by more than 300 votes.

Counting in the electorate in rural southern Queensland has now put that seat in doubt, ABC election analyst Antony Green says.

"She's had a significant swing to her and is in the running to win the seat," he said.

Liberal National Party candidate Ian Rickuss has held the seat since 2004.

About 6:45pm (AEST), Ms Hanson was leading by about 365 votes after preferences.

If she wins, she would be the fourth crossbench MP, with a hung parliament in Queensland still a possibility as tight contests continue in several seats.

The ALP achieved one of the biggest swings in Australian political history in Saturday's state election, which saw LNP leader and Premier Campbell Newman, along with a swag of his MPs, lose their seats.

However, Green said he expected further counting would weaken Ms Hanson's position.

"It is likely her preference flows will be weaker in polling places with a higher Labor vote," he said.

"That means the LNP could still be favoured to win Lockyer, but as I do in all electorates, I have classified the current total in the seat by who my calculations suggest is ahead, and at this stage that is One Nation's Pauline Hanson."

One Nation previously held Lockyer from 1998 to 2004, first by local vet Peter Prenzler and then Bill Flynn from 2001.

Ipswich councillor Paul Tully has made an unusual promise if Ms Hanson does take Lockyer.

"I've said if Pauline Hansen happens to win, I'll walk down the main street of Gatton at two o'clock in the morning with a sack of potatoes on my back," he said.

"That's how confident I am that the LNP will retain the seat of Lockyer."

The seat covers more than 3,000 square kilometres between Toowoomba and Ipswich, taking in Grandchester, Laidley, Gatton and Helidon.

The electorate also has a panhandle that stretches east on the southern side of Ipswich as far as Greenbank.

Counting continues as Gaven and Whitsunday remain in doubt

The latest figures suggest Labor could still make it to the 45 seats needed to govern in its own right, but counting could drag on for days.

Green said there had been a big swing to Labor in the Gold Coast seat of Gaven, which could give the ALP enough seats to claim a majority in Parliament if it also won Maryborough.

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Watch Duration: 5 minutes 46 seconds 5 m The Queensland LNP struggles with the fallout of a disastrous election result ( Peter McCutcheon )

"At this stage it's impossible to see how the LNP can end up with more seats than Labor," he said.

"Labor has a definite 43 seats - it remains in a strong position to win Maryborough, which would take Labor to 44 seats, while Whitsunday remains in doubt and Gaven is now also in doubt.

"A victory in either seat would deliver Labor a 45th seat and majority government.

"Mansfield now appears to be a victory for the LNP, though the lead may narrow with the counting of absent votes.

"So it seems that Gaven and Whitsunday are now the two seats that will determine whether Labor falls short of, or achieves, majority government."

Wellington, KAP MPs willing to negotiate

If Labor cannot govern in its own right, leader Annastacia Palaszczuk would need support to form a minority government.

Independent MP Peter Wellington and the two Katter Party MPs have said they were willing to talk to both sides.

Rob Katter said he and fellow KAP MP Shane Knuth still hoped to wield influence in the new Parliament.

Mr Katter said Labor should talk to him and Mr Knuth even if it managed to get across the line.

"They may not need us but they're one scandal away, or someone resigning due to ill health away, from not having government, so they'll certainly be a lot kinder to us than the last government was and I think they'll be a lot kinder listeners," Mr Katter said.

Mr Wellington said while he was willing to negotiate with the LNP, he would not be if former treasurer Tim Nicholls was leader.

"I am already on the parliamentary record making some very critical comments to some of the Campbell Newman leadership team," he said.

"It would be very, very difficult for me to support some of those people to continue another two and half or three years of government in Queensland."