Do you really think the book companies will allow that? They are just another arm of the Deep State.
They ARE an arm of the DS, but primarily, they are greedy. They LOVE cash. At least one will do it.
OTOH, someone might be like the college coach who signs good high school players with the idea that the player, even if he rides the bench, at least won’t be playing for their rival. IOW, they might sign and give an advance to prevent a book from being published.