The league is almost certainly going to move to a divisionsional alignment at some point. We are just entering a time when there are too many teams to have too many home and away series. When MLS reaches 32 teams, 30 games would be required for a home and away series against each conference foe. That leaves just 4 intra conference games, which would mean missing 12 teams a year. That’s way too many IMO. Four divisions of 8 teams would reduce that number to 14 games, leaving 20 games vs the rest of the league. Or you could follow the NFL’s lead and go with 8 “divisions”. Each team could play their other division rivals twice and then the other 28 teams once. In that scenario schedule imbalance would be relatively minimal and each division winner could be guaranteed a playoff spot, with X number of at large bids based on record. That said, a schedule that pits more eastern or western teams against each other while excluding certain intra conference matchups would have the benefit of reducing travel, which is something that has become a big talking point in the league.