Ben Hunt is expected to retire after the 2027 NRL season, almost 20 years after his debut.
The 373-game veteran is likely to play only occasionally next year while helping develop younger talent at Red Hill.
Having achieved everything the sport has to offer, Hunt is expected to provide experience rather than remain part of Brisbane's longer-term plans.
Blake Mozer and Cameron Bukowski are viewed as candidates for the Broncos' long-term No. 9 role.
Ezra Mam, Jonah Pezet and Thomas Duffy are competing for places in the halves.
Brisbane's November 1 listing names no other player as off contract and identifies Hunt as leaving through retirement.
With the deadline less than a day away, clubs face decisions over their halfbacks as several prominent playmakers enter the open market.
Some could move, while others are expected to stay with their current clubs.