The 36-year-old may be in the twilight of his career but has showed no signs of slowing for a Juve side who have won the last three Serie A titles.
And while Buffon's contract expires next year, his agent, Silvano Martina, said he was very likely to stay at the Serie A giants.
"You have all seen the state Buffon is in," Martina told Calciomercato.
"He will play on for a long time. The contract is due to expire next June, that is true, but the words of [Juventus general director Giuseppe] Marotta seem very clear in this regard.
"There is no rush for the renewal. For this, we have not yet set a date for a meeting.
"Let the transfer market finish and the season begin - then we will see.
"It will really take two minutes to sign a new agreement."
Buffon and his Juve team-mates will be without coach Antonio Conte this year as they aim to make it four Italian titles in a row.
Conte - who has left to take up the post with the Italian national team - has been replaced by Massimiliano Allegri.
Buffon has made more than 700 Juve appearances in all competitions after joining from Parma in June 2001.
‘After Manchester City’s recent form, maybe they’re the underdogs against Manchester United!’ Former Red Devils defender on this weekend’s derby
‘Arteta, Alonso, Emery, me… none of us were physical players – we needed the understanding of the game. That probably helped us move into management’: Premier League boss reveals reasons for natural career progression
