I mean... I would be down for a Boeser x Necas swap but as mentioned, Canucks are adding Necas to their forward core. not trying to subtract.
However, much like the Canes something has to give. You can't take on Necas, not lose a higher end forward and also re-sign Lindholm, Zadorov, and Meyer.
Canes will almost certainly be parting ways with Teuvo, Skjei, Pesce, TDA and who knows... maybe even Chatfield.
If that happens then they can likely re-sign Guentzel and acquire some other players. Maybe the bridge with Necas has been crossed and there is no common ground for him to stay but with that many players almost certainly departing Canes could be big players in free agency or via trade.