The "injured list" now includes a 10-day version (changed from a 15-day version in 2017) and a 60-day version that teams can use depending on the severity of a player's injury.
A rule requiring pitchers to face a minimum of three batters, except in the case of injury or when finishing an inning.
A single trade deadline before the all-star break, to replace the traditional July 31 deadline and the August 31 waiver-trade deadline.
A 20-second pitch clock, a timesaving device Manfred has espoused for more than a year now.
Tweaks to the draft order to reward winning teams and penalize perennial losing teams.
The adoption of the designated hitter in the National League, making the DH universal across both leagues.
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A study to lower the mound and a rule that would allow two-sport amateurs to sign major league contracts.
Many of these rule changes, such as the universal DH and the three-batter minimum for pitchers, are to promote offense, while the single trade deadline and expansion of rosters should help to increase fairness within the game-picking up additional pieces just before the home stretch in August, like Justin Verlander, will no longer be tolerated.
Considering the depth that the Los Angeles Dodgers have, the rule that would expand rosters to 26 players is one that would benefit them greatly if it is adopted.
Spring training begins for pitchers and catchers next week and Opening Day is 50 days away, but Major League Baseball and the players association are considering jamming in significant rules changes for the regular season.
Regardless of what happens this winter, this will definitely be something to keep an eye on moving forward as big changes could be coming to Major League Baseball in the near future.