The Welsh midfielder, who joined from Cardiff City in 2010, has entered the final year of his deal at Parkhead and is keen to sort out a new contract with the Scottish champions.
"Everything is still on hold at the moment. As I said to the gaffer (Neil Lennon), I'd like to concentrate on the pitch more than off the pitch," he told the Daily Record.
"Hopefully, my agent can come up soon to sort everything out and the club offer me a new deal. It's a very important couple of weeks.
"It's a fantastic situation we're in. Hopefully, I can just concentrate on my football first, qualify for the Champions League then go from there.
"I was exactly the same at Cardiff and I dealt with it well. Hopefully, we can sort something out in the next couple of weeks. I've not properly had a chat with the manager about it but he knows."