From what I understand he has rejected offers of a new contract. As of this summer coming he'll have 2 years left ( maybe 3 if Levy snuck one of those 1 year extension options on ). I think Vertonghen is in roughly the same boat as well ?
If they continue to run their contracts down then all bets might be off as to how Levy would approach that.
Hope that's wrong though and there's something in the works
contract goes to 2016