Recently the NFL has had a huge push for flag football to join the Olympics. Once getting more people are involved in football it would make it easier for other people to learn the game. The goal is for football to be more popular in other countries.
The closest time possible would be the 2028 Olympics set to take place in Los Angelos. The League is pushing by continually playing in the international games yearly. Just recently the Olympics approved surfing, skateboarding, and sports climbing for the 2028 games. This would mean that there is hope in the flag football proposal.