"I have something in my head but I cannot tell you. This is my tenth season in England. Except for the very first at Manchester, I only knew good times," Fellaini told Humo.be.
"I'm still here. If Manchester did not want me anymore, they would have said that for a long time. They made a proposal, probably one will follow.
"Whether I will accept it I do not know. You cannot arrange something like that in a jiffy."
The former Standard Liège youth player has gone on to make 145 appearances for Manchester United, scoring 19 goals and claiming 10 assists.
Despite struggling to settle into life at Manchester United immediately after his move, Fellaini is now a fan favourite at Old Trafford and supporters would likely want to see the Belgian midfielder sign a new deal with the club.