I feel like something that haven't been discussed about the OWL format is the different conferences like the Western Conference (LA, San Francisco, Las Vegas etc), Eastern Conference (New York, Boston, Philly, etc), European Conference (Frankfurt, Paris, Barcelona, etc) and the Asian conference (Taipei, Seoul 1-3, Hong Kong etc). With all competing in the same league but teams inside the conference's playing more games against each other than the rest of the league. So in basic what there is in every major sports league in NA (except from NFL where they just play way less games than in any other sport).
Most likely starts from the NA only with like 12 teams and after the first season (if and when successful) will grow to global.