If he was going to stay he would of signed by now.
If you believe he wants to move to be near his family, then running his contract down is the obvious route, he could then move to a club who otherwise couldn't afford his transfer fee.
If he was willing to be sold to another club in the UK, I think it would of been agreed by now. (Why jeopardise a move by getting injured playing for us?)
I have a horrible feeling he and his agent already know where he'll be playing next season. I hope I'm wrong, but I fear it's likely to happen.