8. Knights of Ren
It was heavily hinted at in The Force Awakens that Kylo was a part of a group known as the Knights of Ren, which we only got to see very briefly in the Force induced vision that Rey has after touching Anakin’s lightsaber. Getting some sort of flashback to who they were and their importance would answer some of the questions that have been left lingering. These questions highlight the relationship between Snoke and Ben Solo and how that all plays into the main narrative of this new trilogy.