First photo from Ep. IX might be implying that The Last Jedi can be forgotten and skipped
This is just my own view... Based on what Abrams has said, I have a strong feeling he's doing IX as a direct sequel to The Force Awakens, and can largely ignore Last Jedi, other than Luke's death.
Here is the first photo on Abrams' new Twitter page, from the first day of shooting:
https://twitter.com/jjabrams/status/1024717847958892545
Notice the emblem on the side of the camera only says VII, and IX.
Now that may be because Abrams is the director for both of those, but to me, it's an implication that only VII and IX will be important to this, and will contain as much as possible of the trilogy story that he originally wanted to tell (as he wrote rough scripts for all three when he did VII).
I like that pic, though. No VIII. Down with VIII.