The fact is that African and Asian football has progressed significantly in recent years, which can be seen in the examples of the success of South Korea in 2002 and Morocco last year
Japan and South Korea are teams in Asia that have experienced a lot of progress, especially Japan, not because they were able to beat Germany but being able to qualify for the knockout rounds is an achievement and Iran also a power team from Asia, this is quite surprising because the country's conditions are not so conducive, but the national team can still play in the World Cup.
Saudi Arabia is working hard to develop their league but not sure if it will directly impact their national team because as far as I can see the development only affects the popularity of their league. With the increase in the number of participants, Asia will also get an addition but I'm not sure that there will be a new team that will impress because Europe and America have always been the best in the World Cup.
In due time, those national teams that were added in this upcoming World Cup will be a threat to the heavy teams that exists right now. For now, a lot of them are still developing their teams while acquiring some experience by participating in the upcoming World Cup. Just a little steps and maybe soon, who knows, maybe Asia will also be included into the discussions as they can manage to develop a strong team that will be on par with the top teams we have.
Generally speaking, alot of teams are doing all their best to improve their world football team, sports has proven to be a medium through which the world comes together in love and harmony, countries, most especially the smaller ones, who never regarded sports(football in particular) as anything important are not seeing its importance and have begun to pay attention to their team..
On the above note, I dare to say that 2026 fifa world cup tournament will be a new beginning in the world of football, it the beginning of power shifting, where most teams that have stood as the best for as long as they have been, will be demoted and ran over, by much more younger and more vibrant players.