Yeah, I think that Laine is a pipe dream. Kevin Cheveldayoff knows what he has there, and he's not going to sell low on him.
I think that if you want him, you'd have to present a pretty compelling offer, and Gaudreau wouldn't be a bad place to start - but I don't think that Johnny Hockey is the piece that'd push the Jets over the top. You might also be able to start with RFA for RFA, and offer Tkachuk, but I don't think he's what the Jets need either. They've got a really solid team without a lot of holes, and the best case scenario for them is to get Laine signed to a contract that they can live with, which will either be a bridge deal, or they'll go big, and next year he'll be back to his old self.
He's not going anywhere.