I feel as if a better way to make travel arrangements would be really helpful. Trying to book tickets and hotels (and for my team, organizing international flights too) are a nightmare, and it would be much cheaper and easier if it could be organized before the event. But how you would do it is a hard question, and particularly as most international events (like the Australia Regional), flights would need to be able to change their departure, making it effectively impossible.
For international teams who need it most, it's kinda impossible (

) But travel is obviously still a huge pain for every team, and organizing it for districts sounds possible, just hard. But it would probably be worth it.