The highly-rated Danish international has been linked with a number of Premier League clubs in January - but he is now happy to wait for his move.
"This summer I should leave." Okore told Sporten.dk.
"That is the time when I have the biggest chance and I certainly hope that it will happen.
"It is still FCN who decide, but it is my plan to leave this summer."
The talented stopper is not disappointed, although the Danish club reportedly rebuffed an offer from Premier League club Fulham FC in January.
"I had certainly hoped that I would be able to move right now." he added.
"I want to prove myself on a higher level. But it is also difficult to join a new club in the middle of the season.
"I believe that it was not FC Nordsjaelland's plan that I should leave during this transfer window."