Frans Kilian, 80, is in hospital on the Gold Coast suffering from pancreatic cancer.

One of his sons Mark Kilian, and wife Anneli, are in Sydney completing the last seven days of their quarantine after rushing to Australia from Los Angeles.

Both are vaccinated and have returned at least three negative coronavirus tests.

Premier Annastacia Palaszczuk on Wednesday pledged authorities would work to facilitate a reunion as quickly as possible, if NSW can guarantee safe transport between states.

However, NSW counterpart Gladys Berejiklian says it had already been made clear that her state had done everything it could to allow the reunion.

"At least a week ago our health minister spoke, and New South Wales made it clear there was no impediment for them to make that journey, can I be clear on that?" the NSW premier said.

Ms Berejiklian did not clarify whether NSW would provide Queensland with additional assurances about potential travel arrangements to speed up the process.

Meanwhile, Queensland will soon close its borders to Greater Sydney and the surrounding regions of the Central Coast, Blue Mountains, Wollongong and Shellharbour in response to Sydney's growing COVID-19 outbreak.

It had earlier been announced only six Sydney local government areas would join Waverley on the list of hotspots from 1am on Thursday.

But Chief Health Officer Dr Jeannette Young has now decided to cast the net wider, citing concerns over many new Bondi cluster cases being transmitted from fleeting contact.

"The Delta variant is much more contagious than other variants and we do not want it circulating in Queensland," Dr Young said in a statement on Wednesday evening.

Queenslanders are also being told not to travel to Greater Sydney and surrounding areas in NSW as they count down to school holidays.

The Sunshine State recorded one new case in quarantine overnight as confirmation came there had been more instances of virus transmission within one of its hotels.

Two people staying on floor five of Brisbane Airport's Novotel were infected by a positive case in an adjacent room, Dr Young said.

The cases were previously thought to be overseas acquired. Others staying on the same floor have had their quarantine stay extended as a result.

Progress on the quarantine exemption for Mark Kilian and his wife Anneli comes after Frans pleaded with Queensland Health to show compassion.

"Every day that they are in that hotel is a day less that I have with my son and daughter-in-law in my last days," he said in a video appeal from his hospital bed.

"I'm asking you, begging you actually, to let my son and his wife leave their quarantine to come here to be with me. It is my dying wish. Please."

Mark Kilian says there seems to be some buck-passing between Queensland and the Commonwealth.

He had received a letter from Prime Minister Scott Morrison expressing support but stating the federal government had no ability to affect state law.

"Meanwhile, the premier of Queensland basically said the opposite, so it's a little bit of a passing the buck situation," he told Nine Network on Wednesday.

"To be locked in a room in Sydney when all it would take is just the show of compassion by two people in government; that could change the entire trajectory of a family's experience of the last days of their father, it's inconceivable that they would not allow that," he said, referring to the Queensland premier and health minister.

Australian Associated Press