Arrow: Stephen Amell Talks Possibility of Diggle Becoming Green Lantern

There's a popular Internet theory that John Diggle on Arrow could really be John Stewart, who becomes Green Lantern. Some fans have even created fan art showing John Diggle as Green Lantern. In a recent Facebook Q&A, Arrow star Stephen Amell himself weighed in on this popular fan theory and the Diggle as Green Lantern fan art. "I mean it looks good," said Amell. "And if we know anything about television shows, if it looks good, it has a much better chance of happening." So not exactly a confirmation, but Amell didn't shoot down the idea either. Could John Diggle become Green Lantern?