Labor negotiations between owners and players continue to inch along, but the players did make a concession to owners over the weekend, agreeing to a league request to expedite the process for rule changes, providing for 45 days notice before a rule change rather than a full year. According to Jesse Rogers at ESPN, MLB would like to institute a 14-second pitch clock - 19 seconds with runners on base - as well as larger bases and a ban on shift. Any changes would not take effect until 2023.
The details have yet to be released, but baseball has experimented with these rule changes in the minors leagues.