The Toronto Wolfpack have announced details of a planned match against the Kangaroos at the Canadian city's 30,000 capacity BMO Stadium on October 24.
The Wolfpack, who enticed Sonny Bill Williams from the All Blacks on a $10m deal, have been in discussions with the NRL about hosting Mal Meninga's Australian team on their way to England for the first Kangaroo tour since 2003.
NRL officials are expected to finalise matches outside Australia's three-Test series against England while in the United Kingdom for the February 22 World Club Challenge between Sydney Roosters and St Helens.
Wigan, Leeds and St Helens are other Super League clubs to confirm interest in hosting the Kangaroos before or during the Ashes series, which begins at Bolton on October 31.
The second Test will be played at Elland Road on November 7, with the third Test at Tottenham Hotspur Stadium on November 14.
The Kangaroos are also expected to play a Test against France after the Ashes series, while a match against the England Knights has also been mooted.
NRL officials want to confirm the financial viability of matches before finalising an itinerary but Hunter is so confident the Kangaroos will be a huge drawcard in Toronto that the Wolfpack have made a tentative booking at BMO Stadium on October 24.
The Wolfpack usually play at the 9,600 capacity Lamport Stadium but BMO Stadium can accommodate crowds of 30,000 for Toronto FC matches in the MLS and 25,000 for Toronto Argonauts games in the Canadian Football League.
Hunter told reporters in England the only obstacle to confirming the historic match was the possibility of Toronto FC hosting an MLS final on the same date.
"We're holding it on October 24 in Toronto," Hunter said. "The challenge becomes TFC being in the playoffs. The stadium has been reluctant to give us the date. I'd say it's still under consideration.
"Right now that date is still on hold but we're very committed to putting on that match."
The Kangaroos previously played in North America when they took on USA Tomahawks at Philadelphia's Franklin Field after the 2004 Tri-Nations but the astroturf pitch was blamed for serious injuries to Willie Mason and Mark O'Meley.
There will be no such concerns at BMO Stadium as a new grass surface was laid in 2018.