Another one of the deleted scenes that. Could have added something meaningful to the story and a peak in the future to come. Sadly it was also cut out along with 80% of the movie. Would you have liked to watch the Green Lantern Corps?
Actual quote from Justice League: War (from the DC Animated Universe). Fantastic movie, and the banter between Green Lantern and Batman is great! (also the animation is closer to that of the New 52 style).