Replacement Owners.
IF theres a void, there'll be entrepreneurs. But it will be hard. Fans in NA wil still be angry.
Perhaps IMG could rent a couple arenaplexes. If they could find a way to keep the old NHL teams as a starting point, they could have all the games televised while teams find arena deals and homes. THe Pittsburgh study showed how they could put up these new pre-fab type arenas quickly and cheaply. Getting the playing going, with similar teams, and standings in the paper, and on something like a new Centre Ice TV, is a good start. Bides time. They could develop a new Major Hockey League. Especially if they are the only one playing and have all the names hockey fans know.
It would be a new business venture that wouild suffer startup costs, the players wouldnt make much money in the beginning, but like small businessmen, they would be looking to grow the business that they and their agents own.
Or they could have a year long World Cup League, and play the playoffs for the world cup. Canada would have several teams.