In all honesty though, the Canucks don't hold a lot of cards if he doesn't want to be there so I doubt the cost would be THAT high. I have no idea what they would want but you accumulate the assets to use them strategically so trading firsts (especially if we are able to acquire more firsts elsewhere) or unproven prospects isn't a terrible idea if you are getting a guy of Pettersson's caliber. He's a top tier center and it would all hinge on him re-signing even at $12 mil/8 years. Imagine this team in a couple years with a top six looking like this:
Farabee-Pettersson-Michkov/Konecny
XXX-Couturier/Frost-Michkov/Konecny
Fill in that XXX on the left with another signing or draft pick or trade or maybe Frost or Foerster can move to that LW spot?
Then your defense has Drysdale/York/Sanheim leading the way with maybe another draft pick or signing there.
Hard to argue with that if it were doable. Now if they want Michkov or three years of first rounders, then it is not happening, but if he is saying he is out of Vancouver they don't have a lot of options.