They are expecting spectators to come for the World Cup, and perhaps this means easier entry into the US. Considering the problems this could create, I'm sure not all spectators will be approved. The US will accept spectators who are deemed problem-free and risk-free. It's certainly possible they could be a little more flexible for this World Cup.
What I'm thinking about most is the Iranians. How will they manage to get in? If they, in particular, are going to the World Cup, I imagine the checkpoints that must be set up just for them. Besides, the USA is very strict about who can and can't enter; that's a fact. I don't know what measures they might implement. Supposedly, visas granted will be the best option, but this could change depending on how they plan their security.
Iran is one team that their entry into the tournament was hanging in a balance because of their war with the U.S and U.S being a part of the host country may not receive them well, even as they have tried telling FIFA to replace the team with another team but it's quite not a possibility according to FIFA rules and regulations.
The 2022 world cup in Dubai was very contained due to how strict their religion and laws permit.
It was compact and not too stressful for the players because of the proximity of the stadiums.
With the 2026 world cup however, things are very different. We have 48 teams, round of 32 and eight matches to the final instead of the seven we saw last.
Let's not forget the new countries to be added which are Curacao, Cape Verde, Jordan and Uzbekistan. Who knew these countries could qualify and can play so well, but am definitely not betting on them getting to the round of 32.