Brad Treliving, the GM of the Leafs, recently shared some interesting updates, including news about Marner. Many reports suggest the Leafs won't trade Marner this summer, but rumors are still flying around.
Anaheim might be thrilled to move on from Zegras, given the reported conflicts, and would love to get Marner. Zegras has been linked to Montreal before, but it's unlikely GM Kent Hughes will pursue him in a trade, especially since Hughes is known for holding onto his draft picks.
As for Toronto, they'd get valuable draft picks and a young, talented defenseman in Barron, though Treliving might have his eye on other Habs defensemen, even if it means fewer draft picks.