The characters from Star Wars: The Force Awakens and Episode IX can currently be seen in Star Wars: The Last Jedi, now playing in theaters globally.
To give you an idea of why this is impossible, Johnson only began work in earnest on The Last Jedi in mid-2014, right around the time J.J. Abrams started shooting The Force Awakens.
So what Star Wars film could be shooting six months from now?
Star Wars: Episode IX will be produced by Kathleen Kennedy, Michelle Rejwan, Abrams, Bad Robot, and Lucasfilm.