The upcoming Green Lantern movie, Green Lantern: Beware My Power, can answer a major unanswered DCAU question. Granted, Beware My Power is part of the Tomorrowverse line of animated films and not the DCAU, so anything it does won’t reflect on the DCAU. Still, the fact that the movie will involve certain characters that are also featured in the DCAU means that anything it does can be seen as a form of payoff for that.
One of the many stories that was left unresolved when Justice League Unlimited—and the DCAU, as a whole—ended was whether or not Green Lantern and Hawkgirl would get back together. Even after betraying the League and the planet to Thanagar, John never stopped loving Shayera, and they both knew that they were likely destined to be together thanks to them having a son by the time of the DCAU's Batman Beyond. However, John wasn’t ready to get back together with her and didn’t want to do it just because destiny said so, and the show ended with them still broken up. The recent Justice League Infinity comic continued this by having John and Vixen break up, but he and Shayera still didn’t get back together, so the story still remains unresolved.
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Green Lantern and Hawkgirl’s story was left unresolved, but Green Lantern: Beware My Power has a chance to fix that. While the movie isn’t canon to the DCAU, it still stars the John Stewart Green Lantern and the Shayera Hol Hawkgirl, just like Justice League and Justice League Unlimited did. Therefore, any sort of relationship the two develop throughout the movie can be seen as a payoff for leaving things unresolved in the DCAU.
Beware My Power could also work to give their relationship a
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