If they are retaining 50% they don’t need to add anything. Then his contract becomes great.If Calgary ate 50% of his salary and attached a 1st round pick and a prospect you might get a bit of interest from someone like Pittsburgh. They did the soft rebuild type deals taking back Glass and Kevin Hayes. That's about as close to a "contender" as I can see Huberdeau getting.
That's not to suggest Calgary should do that deal, but that's where I see the value.