If anything, baseball could survive expanding more ... if I ruled the world? (imagine that - some of this will never happen for lots of reasons, territorial monopolies mostly ... and I am assuming stadiums can happen in every place, which is obviously not true)
1. Move A's to San Jose - they've wanted to do it, and SF's territorial claim is nonsense.
2. Move the Rays to Brooklyn - NY can sustain 3 teams easily
3. Add 2 new teams. Put the Expos in Montreal again. I'd probably add a team in North Carolina. Strong minor league baseball tradition yada yada yada.
Go to four eight team divisions
AL East: Red Sox, Yankees, BROOKLYN, Orioles, Blue Jays, Tigers, Guardians, CAROLINA
AL West: White Sox, Royals, Rangers, Astros, Angels, SAN JOSE, Mariners, Twins
NL East: Nationals, Braves, Phillies, Mets, Marlins, EXPOS, Pirates, Reds
NL West: Brewers, Cubs, Rockies, Cardinals, Padres, Giants, Dodgers, Diamondbacks
Division opponents 12 times ... 84 games
Other division opponents 9 times = 72 games
One cross league rival = 6 games
Yankees-Mets, Orioles-Nationals, Blue Jays-Expos, Cubs-White Sox, SAN JOSE-Giants, Royals-Cards, Guardians-Reds, Dodgers-Angels locked in
4 east:east cross rivals locked in, 4 west:west cross rivals locked in
The other teams rotate east:east and west:west. So Red Sox would rotate between Braves, Phillies, Pirates and Marlins over 4 years.
2 division winners and 4 wild cards from each league