I think things are going back to normal from a daily life routine. But I think Covid has taught people how to live without things that they thought they couldn't live without. I can't live without baseball, but I can quite easily live without going to OPACY again. I'm happy to go if there are others that want to but I'm not going to be the one to suggest going.
Add to that that baseball's fanbase is increasingly growing older and hasn't figured out a way to capture millennial and Gen Z attention. Washington Post had an article on it the other day, it was a good read: https://www.washingtonpost.com/sports/2020/11/24/gen-z-sports-fans/
If the NFL is worried, MLB should be absolutely petrified.
That's why we wound up with a 60 game season this year. Players wanted 80. Owners were able to stall as long as possible until there was only time for 60.
They will do as much as they can to minimize the number of games in front of no fans or extremely diminished fans next year. The only thing fighting in the other direction will be the players union, who of course wants to play more games (or, more accuratenly, wants to get paid for more games).