I'm not sure what it'll will cost, but I'm thinking its more than what Sweeney may want to give up, thats if Miller even waives to come to Boston.. The Canucks aren't out of it so more than likely their going to want Zacha/Coyle as part of the return, plus a prospect (Lysell/merk) and a top 6 defenseman (Carlo) I think in the end you have to ask does it put the Bruins in the playoffs and deep. No certainity there.
I think Sweeney is in a wait and see mode and won't do anything till its close to the deadline, He has one foot in the buy door and the other in the sell, so once he decodes in which direction he chooses JT could be long gone. We'll see, but either way I dont feel the Bruins have the assets to compete for a JT Miller and Miller may have told the Nucks its the Rangers and thats it.