I think most of the world kinda hoped that Messi retired with the world cup trophy.
It was like a happy ending of a story, everyone loves a happy ending

And now we just need to wait four more years to see the next version of the world cup, with many more teams qualified, and in North America: Canada, USA, and Mexico will be hosting it in 2026.
I am super-excited for the 2026 edition. There will be a total of 48 teams and we can expect more and more upsets against the top teams. And there will be a lot more diversity, with additional teams from Africa, Asia and Oceania. Teams such as New Zealand and Nigeria deserves to be in the world cup, and so does China and Indonesia. Let the FIFA world cup be more representative. The current format gives too much importance to teams from UEFA and CONMEBOL. There is a lot of talent in Asia and Africa, and it will be showcased during the 2026 edition.
Having 48 teams will be great, it will allow a lot more teams to participate and we are going to watch a lot more teams try to win. It's good to see yourself represented there, even if you lose during the group stages, you at least get 3 games of your nation on world cup and that matters, even if you lose all three, you were at least there and that's amazing feeling.
From what I gather it will be 16 groups with 3 teams each, and that will end up being the top two teams going up again, so 16 teams will be eliminated on group stages and then 32 teams will play against each other in a tournament style of thing, and then last 16 and so forth like we have it now.