I heard today from an OHL person that Foerster likely isn't back (along with Perfetti, Sebrango, Perreault, Byfield, Drysdale) and if that's true, that's a massive loss for Barrie. They also have no goalie right now after losing Greaves. Kingston has Shane Wright and also and NHL drafted goalie, which is why they're the unquestioned #1 going into the season for me.
Weirdly enough though they think that Ryan O'Rourke will be sent back to SSM, which surprises me as I think he's pro ready right now.
If that person is wrong and Foerster gets sent back then the gap is significantly less, but obviously Barrie still needs to find a goalie in a league where there aren't very many established ones at all going into next year