Star Wars Episode 9: 15 Essential Rumours & Theories
3. The Knights Of Ren Are Heavily Involved
Who are the Knights of Ren? What purpose, exactly, do they serve? Where are they now?
These are questions that J.J. Abrams, in his classic mystery box style, raised in The Force Awakens, and it appears he's actually going to give us some answers in Episode IX.
The Knights may have been absent in The Last Jedi, but they are reportedly going to have an important part to play in Episode IX. Making Star Wars have reported that Kylo sent them out to The Beyond - seemingly somewhere in the Unknown Regions - to explore the galaxy. But since Kylo Ren killed Snoke and made himself Supreme Leader of the First Order, having people around him he can trust will be a big advantage.
According to the aforementioned Star Wars Leaks post, they each have their own weapon - similar to Snoke's Praetorian Guard - although it's unclear if these will be exactly the same as what we saw in Rey's vision in The Force Awakens (but that would make sense).