If he opted-out and signed a multi-year deal for slightly less AAV, I'd love that.
To be honest though I don't view Kanter as some sort of "priority" though. I love his attitude. But it's not a good sign that he apparently is unplayable against most of the East playoff teams (ex. Toronto). He's fine as depth and maybe for stretches off the bench.
Danny definitely needs to get a true big man this winter. I wouldn't even mind a Baynes reunion. Someone who you can actually play against most teams. Theis is alright but no way can he be the starting center on a championship team. Starting PF? Sure. Not at the 5. Timelord could still use another season to grow fully in terms of experience/skill.