Well actually, it is all about supply and demand. PLD needs a contract now. He has quite a bit of power over the team since he can decline to sign with them thus forcing the team to trade him. Each week he remains unsigned, he's value diminish and he's a distraction to the rest of the team. So... trading him now is definitively in the Jets best interest.
Now as for value, if it is true that he only want to play in MTL, and his agent says as much to the other 31 teams... why would NYR or any other team pay through the nose to get him for only 2 yrs?? WIN should expect a return similar to a UFA rental, not a core piece to a young roster. The Jets are stuck... must trade him and nobody will see him as anything more then a UFA rental in terms of value. Win can mitigate the damage and try and play the pressure building around in MTL to get the deal done, but they wont get top tier return for him from anyone.