News states this will be out 5/23 of 2019 (if midnight showings are considered, I guess). Odd that Disney would switch to a December date for Episodes VII and VIII, plus R1, then go back to summer. Hmm.
They should leave these at the Xmas date, there really isn't a lot of competition there, so it can make more of an impact instead of getting lost in billion-dollar-summers. Xmas is what Fox had in mind for ANH before post-production overruns pushed it back to May '77.
I wonder if Ep 9 is filming already, an 18-month turn-around is pretty quick for a series that had traditionally taken 3 years before.