Mauricio Pochettino expects to be at Southampton next season and is looking forward to working with chairman Ralph Krueger.
Loan pair Sam Hutchinson and Leon Best have extended their deals at Sheffield Wednesday.
The Sweden international has no intention of leaving the San Siro outfit this summer despite reports in Italy linking him with a move to Spanish giants Real Madrid.
The 30-year-old Ibrahimovic told the AC Milan channel: "As I said six months ago, I am happy here.
"I have a contract and I don't have any other thoughts.
"I am determined to end this season well with the Milan colours and then with my national team.
"Milan has given me back a smile and the will to play. Milan is my future.
"I play well because I am happy here, on and off the pitch. After the holidays I will return to begin pre-season training with this jersey."
Ibrahimovic has scored 23 goals in 26 league appearances for the Rossoneri and leads the Serie A goalscoring charts.
He joined Milan in 2010 from Barcelona and is under contract with the Italian giants until June 2015.