Buffon, who plays at Juventus since the summer of 2001, the last match in the shirt "Old Lady" will play may 19 against "Verona".
After announcing that he would be leaving at the end of the season, many thought that the 40-year-old would also confirm his retirement from playing.
Buffon also apologised to referee Michael Oliver for his reaction in Juventus' Champions League exit to Real Madrid in which the goalkeeper was sent off following an injury-time penalty awarded to Real.
"There's no point now betting on where I could go".
Juventus' Gianluigi Buffon gestures to the fans at the end of the match.
The Italian World Cup victor, who has been with Juve for 17 years, will lift his ninth Serie A title when they host the already-relegated side at the Allianz Stadium.
"To end this adventure with two new victories was important", the Italian told a press conference at the Allianz Stadium. "I'm sure he'll ensure I'm not missed".
"Next week, after two or three days of reflection and serenity, I will take my decision", he said.
He said: "Fifteen days ago, I was already an ex-player". I'm proud to say it's not like that. "I am a competitive animal and I wouldn't be able to live or feel at ease in that situation", he said.
Named captain of the national team in 2011, Buffon is the most capped Italian global with 176 worldwide appearances, and the fourth-most capped footballer of all time.
While Karius - who has improved drastically this term - would undoubtedly benefit from having a goalkeeping colleague as experienced and talented as Buffon, bringing the evergreen 'keeper in would be a big risk for Klopp.
He has also won five Coppa Italia titles, one with Parma and four with Juventus, and one UEFA Cup title with Parma.
He said he will not play on 4 June in a friendly against the Netherlands, adding he will "stay away from the national team".