You're in luck, the club are allegedly hiring for someone to lead the department of hypothetical past realities. Instead of telling us macarons on here how things would have gone in your version of wot you reckon for free, you could be earning the big bucks doing a massive service for the club.
Moving on from your textbook version of an unproveable assertion, it's quite possible Preston wouldn't have taken him without an option. And 5m for an academy product is "pure profit", as much as I loathe that phrase and how everyone has suddenly become a footballing finance guru overnight. If he wants to carry on his good work there, fair play to him, good luck and GHod speed.
However if he wants to stick it out and go for it in preseason, or simply wait for a better offer than all power to him. It feels like PNE is the move for him though, seemed like a good campaign in the championship and I don't imagine it's easy fighting your way into a team as a loanee...