It seems Disney and Lucasfilm are getting a reputation for being hard to work with or just knowing exactly what it is they want in a director.
Just months after Disney replaced Phil Lord and Chris Miller on the Han Solo standalone, JJ Abrams who helmed The Force Awakens is taking over from Colin Trevorrow who leaves the project after failing to work through issues with the script.
With The Force Awakens, J.J. delivered everything we could have possibly hoped for, and I am so excited that he is coming back to close out this trilogy, Lucasfilm president Kathleen Kennedy said in the release.
There is a concern about the production schedule which is set for February 2018 will still work out. It seems that even the cast have been notified that the schedule may have to be pushed back a few months for Episode IX.