Boss David Moyes admitted it has been a difficult period for everyone involved but says he will be “delighted" if the 27-year-old signs a new contract.
Moyes had been adamant that Kone would not be leaving the club this summer and the manager deserves credit for his strong stance.
“It has been a difficult period for us all," Moyes told the Sunderland Echo. “I understand Lamine's position, but I also understand the position of the club – we are looking to get things resolved.
“I will be delighted if Lamine signs a new contract. Hopefully, there might be some news.
“We always said if there was a promise made we would stick by our word and we would do that.
“We won't change on that at all."