Oh, quelle surprise for you being an antagonistic know all.
It's true though, isn't it? You've got nothing to suggest he'll demand a much larger wage or signing on fee if he's a free transfer, it's just a thing on FM so you're assuming it's true in real life.
I imagine the financial package won't change much from what he agreed to and signed last Summer. He's the one desperate to come to us, after all.