The pre contract agreement would be ripped up.
As for a fee, how much is he worth to us in our battle to stay up? £300,00 +? Whatever the figure, if any potential buyer doesn't meet that figure then he stays.
If a move seems likely in the summer and the extension clause is triggered, then I'm sure we could come to some agreement to benefit both parties, as we've done in the past with the likes of Scott MacDonald.