Maybe, maybe not. I'm hoping there is a bidding war to drive up the price. St.Louis, Floreda, Anaheim (now that they are out), a mystery challenger...
I'm guessing Florida, but who knows. St Louis makes the most sense in terms of team needs, but they just gave up a load of assets to pick up Miller before the deadline and may be reluctant to put in an outstanding offer. Anaheim would use him as a second liner rather than a first, which means the offer will not necessarily be top notch, but at least they have reams of assets to give. Florida is apparently ready to open the bank and make a push, but there is some question about whether they would be willing to part with a top young asset to get the deal done. Their first overall pick intrigues me though, and they did say it is in play.
As you point out, there is a decent chance that someone comes in off board and makes a huge pitch. Wpg really needs a highly skilled C, and they have some interesting pieces that they may be winning to give up. The problem is that a lot of their better trade pieces have decent sized contract that we may not be able to take on. I heard rumours about Dallas, but I can't imagine what they would give up to get a deal done. Nashville doesn't seem to have the pieces to get a deal done either. I'd be pretty stoked if the Avs made a play, because their offense with Spezza added would be as close to unstoppable as you can get in the modern NHL.