Asked if he was Premier League-bound, he said: "I have another three months here and then what will happen?
"Big things will happen. Let's just say I am in shape."
Ibrahimovic scored the opener last night, via a John Obi Mikel deflection, and is out of contract in the summer.
He has been linked with Arsenal, Liverpool and Manchester United.
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Simon Mignolet was handed a new contract earlier this season, but the 27-year-old has frustrated while at Anfield and it is believed Jurgen Klopp could still make a move for a keeper in the summer.
Adam Bogdan, who joined from Bolton last summer, has struggled on Merseyside and is expected to leave at the end of the season.
And the Reds are now considering reinforcements, with Spanish news outlet AS claiming they are interested in signing Betis goalkeeper Adan in the summer.