2) NY Mets prospect who will be traded before making his MLB debut: Kevin Parada
As much as I don't want this to happen, there's a very legitimate shot Kevin Parada gets traded at some point. The third best prospect in the system and 36th best prospect in baseball according to MLB Pipeline could debut in another uniform. The reason for this, is purely because of the position he plays.
Parada is a catcher. So is Francisco Alvarez. Sure, the Mets could opt to move Parada to a corner outfield spot or something of that nature, but is that the best course of action? Changing positions can impact his bat, and he probably wouldn't be the best outfielder in the world since he is, well, a catcher.
The Mets can get far more value out of Parada if they trade him as a catcher. Good hitting catchers are so hard to find, just ask Mets fans who dealt with watching James McCann and Tomas Nido for the last two seasons.
If Alvarez and Parada both end up becoming the players the Mets expect them to, they'd have two hitting catchers. While that's great, they could flip one, Parada, to land someone who'd actually fill a need.
If Alvarez doesn't hit, Parada likely doesn't go anywhere. I think everyone expects Alvarez to be a stud offensively at some point, and if and when that happens, there won't be room for Parada at his primary position.