The more I think about it.... there should be a way to plan & handle fans in stands at BDS from get-go. Social distancing... outside.... is doable.
Figure it out... 2k, 5k, 10k. Whatever the number... figure it out!
I doubt it will be exactly like this (I expect it will be somewhat looser), But he Chinese Baseball Association (Taiwan) is playing their season. They are allowing 1,000 fans per game (average capacity of their stadiums are 20K). Fans are required to sit in specific seats and they have to wear a mask the whole time and are not allowed to eat or drink.
Sort of as Fred mentioned it would seem like you figure out how many you can bring in, you have no on site concessions. The outside food and drinks will be the biggest thing - I would expect all entries to be ticketless, they will also want to have security have as little touching as possible.
You probably have assigned entrance times to minimize the amount of people arriving at once.
It's definitely going to be a different experience.