Lt. Valeria mentions the "Five Fire Rings of Fornax", a phrase which first appeared in the novelization of the original Star Wars: Episode IV - A New Hope (1977), written by Alan Dean Foster and credited to George Lucas. In the novel, Han Solo says: "Getting back to the ship's going to be like flying through the five fire rings of fornax".
He Aurebesh text visible on the viewscreen in M-OC's cockpit when he approaches Corsuscant translates to: "Analysing", Ready", "Damage sustained Analysing, damage indicated Arrowhead involvement. Debris shows clean cuts" and "Tie Fighter debris". Later, while being chased by the Arrowhead, the text reads "Decelerating" and "Active".
The Aurebesh text visible on the Imperial officer's datapad translates to: "Incoming transmission enemy activity".