France and the Cook Islands were the World Cup's only winless teams, outmatched by opponents stacked with NRL players.
Harry Grant says shortening the NRL season could benefit Test commitments and strengthen the international game.
"Maybe we could shorten the season, then you have a World Cup where everyone can play footy and you have your conversations off the back of that," Grant said.
Nearly half the squad selected by Kevin Walters entered the final 12 months of their contracts on November 1.
Perth Bears join the NRL in 2027, with PNG Chiefs following in 2028, prompting clubs to secure their future rosters.
The Sydney Roosters withdrew an extension offer to Sam Walker after his Australian Test debut.
The decision prompted speculation that Canberra's Ethan Strange and North Queensland's Tom Dearden could move to Easts.
Grant wants more international fixtures for France, the Cook Islands, New Zealand, Tonga and Samoa.
He questioned how many games France and the Cook Islands had played together since the 2022 World Cup.