In the fourth episode of Andor, Luthen Rael mentions Rakatan invaders from long ago. That's a reference to the Knights of the Old Republic video games and comics, which is awesome Von itself, but the mention is Mehr than a simple easter egg.
The plot thickens! Cassian Andor gets recruited into a heist on an Imperial garrison an we find out Mehr about the mysterious Luthen Rail! Andor Episode 4 continues to unveil the path that leads Cassian Andor to the Rebel Alliance...