I've heard rumours that they will sell Xavi to Man City. Seems far fetched, but if they can rake in upwards of £50m (heard £80m!) for a player of his age, with their financial situation, it may be feasible. Also, there is the possibility that Xavi will want to join City for a massive wage to prepare for his retirement, he hasn't got many years left.
I know it's unlikely, and Xavi must be earning top whack at the minute anyway, and he is central to everything Barca, and he's a one man club....but it could happen, and Fabregas is the ideal replacement. They seem as though they will have to sell a big player in order to fund a move for Fabregas