Cox has agreed a two-year extension to his present contract, which will now run into 1996.
His present contract expires at the end of the year.
Nevertheless, nothing can be done to remove these principals under the present contract.
He added that until the city received the results from an inquiry into the situation, "we should not approve the present contract."
"He's been a fantastic servant to the football club so let's hope he gets past his present contract as well."
The 34-year-old point guard has two years remaining on his present contract that pays him $1 million per season.
He is earning $1.1 million on his present contract.
"We regret that he has decided not to continue after the end of his present contract," he said.
Her present contract with the organization runs through the 2015-2016 season.