The fact that the Canes aren't doing practically whatever it takes to keep a fairly young core piece, throws up some red flags. Either the player is high maintenance and is making demands about his role on the team, or the Canes don't really think he's all that great of a player, and not worth whatever his next contract is going to be. Doesn't sound like a player that I'd want to spend significant assets for.
With the addition of DeBrusk, I think this suggests that the Canucks have moved on from trying to acquire Necas anyways. They now have the makings of 3 solid lines on the strength of 3 pairings of forwards: EP/DeBrusk, Miller/Boeser, Garland/Joshua. There really isn't room capwise, for another big caphit up front. Not without destroying the forward depth. I'm glad it looks like the Canucks are out on this one.