Of the countries you mentioned, it is indeed they who are the average subscription to get world cup tickets, but a little note that Indonesia and Thailand must also be considered at this time, because they are also developing quite well, so most likely they will complete the world cup in 2026.
Japan, Korea and Iran are doing good work which is helping them for having better results with China and India needs to work on as well because these are most populated countries with China is doing good, but India is difficult country so it's never been easy for them to have things like which they needed for the development of this game with they are cricket lover nation.
In near future, we will have some good performances which will surely bring good improvement in quality which is essential with consistency is the key for them 2026 World Cup could be having no surprises, but after these events surely are going to be more interesting as many countries are doing good work, and they need to be stick with their policies for the development of this game.
India is very difficult even though in terms of body physique I think it is quite large, but they don't really like soccer so there is no massive talent development there about soccer, meanwhile China, Iran and Japan have been quite decent in recent developments, hopefully they can compete in the world cup later, because I am waiting for Asian representatives to reach the final and win the championship.