If Canucks are pretenders, then so are the Devils. I don't see why Hughes would go to the Devils if winning was his priority. He would join Florida and play with his friend, Tkatchuk. And if you think his connections to his brother is so strong that he would be willing to leave the Canucks to join them, then he would have done it already before signing his 2nd contract.
When I say things change fast, I mean the injuries to key players that can knock you out of playoff spot. The Canucks had very bad luck this season with Hughes being injured for 14 games, Hronek for 3 months, Joshua being out for 3 months, Pettersson recovering from injury or hurt feelings, Miller leave of absents, Boeser injury, Demko being injured the whole year and even Garland that was an iron man for 6 years sustaining injury this year. We had to play with Deharnais as our top pair. The fact that Canucks are still a bubble team is a miracle. If same thing happened in New Jersey, they would be going for 1st overall instead of being in a playoff spot in the easy east. So don't think New Jersey is that superior to Canucks especially since Canucks have beaten Jersey this year with all their injury troubles and the only game Jersey beat Canucks, Canucks had to play with an ECHL caliber goalie in Silovs.
So what am saying, the only reason people talk about New Jersey being a destination for Hughes, is his brother and nothing else. I don't think that would be a strong reason for Hughes to leave the Canucks and if it was, again, he would have done it a long time ago.