Yeah. Its just called canon.
I doubt that Mandolorians will be in the game. Theres just no real use for them.
"It may be that the old astrologers had the truth exactly reversed, when they believed that the stars controlled the destinies of men. The time may come when men control the destinies of stars." -Arthur C. Clarke
"Ideals are like stars: you will not succeed in touching them with your hands, but like the seafaring man on the ocean desert of waters, you choose them as your guides, and following them, you reach your destiny." -Carl Schurz