Katma Tui mentions "that Rayner kid," referring to Kyle Rayner, the first Green Lantern to be introduced in the DCAU in In Brightest Day... (1999).
This episode (and the one preceding it) contain a number of 'Star Wars' references. John says that Katma sounds like Yoda when she gives him advice. The resistance plan to enter the palace through an "exhaust port,"'which is how the Death Star was destroyed. Katma's Priestess outfit even resembles the costume worn by Princess Leia in 'Return of the Jedi.'
Included as a "Bruce Timm's Top Picks" bonus on the Green Lantern: First Flight (2009) blu-ray.