I don't really understand the whole situation. The owners have come out and said that he isn't for sale, so clearly FFP isn't a problem (otherwise why would they say that?). Jack more than likely isn't going to force a move, so until Spurs make a bid that we simply can't refuse (£40m+), we just keep rejecting their bids because we don't need the sale.
I'm absolutely dreading Thursday - to see him another club's shirt will hurt.