I still say wait until playoffs, Marner is fighting to stay a member of his hometown team. Remember he's one of us, he's a die hard Leafs fan and understands his career as a Leaf is in jeopardy if he doesn't perform this post-season.
Don't give him the comfort of knowing he's here long term, I think a huge part of the reason he's playing how he is, is #1 he wants to remain a leaf, #2 he wants a pay day. I'd rather not take his motivation away.
It should all come down to the playoffs for Marner, who has been a career disappointment in the playoffs when the team needs him most. Many that want him re-signed now know he lights up the regular season, and struggles come playoff time. Should he enter the playoffs unsigned and repeat his poor performance the Leafs are more then likely going to move on from him. IMO
Marner and Mikko Rantanen are both pending UFA's, and I personally prefer the big power forward from the Avs at the same price point.
Particularly when it comes to playoff performance, where Rantanen outproduces Marner by triple in GOALS and double in POINTS over their careers.
Marner
Rantanen
In not Anti Marner, I'm simply Pro Rantanen when it comes to wanting the best for my Leafs and hopefully another Stanley Cup in my lifetime because 1967 was a long time ago while waiting between wins.