With Messi moving to Miami , I do have confidence that he will be playing at the next WC , especially that he will know all the pitches by then and having extra info even if the age won't forgive Messi but I would like to see him playing one more WC. Now , can Argentina win it again ? I doubt it because believe it or not , England looks the strongest team on the planet right now , because they do have a lot of young talented players with massive experience in both WC , EC but also UCL and Premier League.

Sounds like a fantasy but I'm pretty sure that in the next World Cup we'll probably see both Messi and Ronaldo - even if they are mostly benched and all their playing time is limited to group games (which will obviously be easy). They are huge brands and I think even the organizers will push the leadership of the national teams to see them at another World Cup.
As for the "strongest team in the world - England" it's probably a joke.