Star Trek: Discovery was also slated to premiere its first episode on CBS before making the jump to CBS All Access; given the apparent success of this release method with The Good Fight, I’d say it’s likely that All Access will stick with the original plan.
CBS All Access has not yet confirmed how many episodes we can expect in The Good Fight Season 2, but THR reports that Season 2 will premiere at some point in early 2018.
Maybe The Good Fight will become the template for all CBS All Access releases.
The series was originally slated to debut on All Access in spring 2017, then was moved forward in the schedule when the original series Star Trek: Discovery experienced production delays.