If Diggle was completely out on the idea of becoming a Green Lantern, why would he repeat this phrase just before the end of the episode?
Just as the episode drew to a close, Diggle left the Kara and the Super Friends behind with the parting words “Worlds await.”
If that sounds familiar, that’s because it’s the exact phrase Diggle heard when he collapsed on The Flash and was overwhelmed by a chorus of voices.
That Flash episode also referenced the scene in which Diggle opened up the box with the glowing green light, which many fans are assuming was a Green Lantern ring given all the clues from previous Arrowverse material that teased Diggle’s potential future as a member of the Green Lantern Corps.