Queensland will have a coalition government comprising One Nation and a major party after the next election, according to former premier Campbell Newman.

Mr Newman also predicts his former treasurer and current Liberal National Party leader Tim Nicholls will also have to publicly confront that reality if he's to become the state's next premier.

Speaking on Sky News on Monday night, Mr Newman said he believed One Nation leader Senator Pauline Hanson was "an older and wiser politician" than 20 years ago.

"Things could change, of course, but I think the next government in Queensland will have to be a coalition government with One Nation," he said.