Justice League: 8 Big Changes It Will Bring To The DCEU
That red sky can mean only one thing.
As anyone who knows their DC lore will tell you, the blood-red sky on display in the latest Justice League trailer hints at big changes to come.
The comic book giant typically uses this trope to herald epic crossover events involving the Multiverse, a collection of infinite Earths inhabited by all kinds of alternative superheroes and villains.
But we don't need the crimson skyline to tell us that Justice League will be a game-changer for the DC Extended Universe, with Zack Snyder's team-up project promising to dramatically alter the status quo.
The film follows on from the events of the divisive Batman V Superman and launches in the wake of the super-successful Wonder Woman.
It finds Batman and Diana Prince attempting to recruit a super group comprised of the world's greatest heroes to combat the alien threat Jesse Eisenberg's Lex Luthor cryptically mentioned at the end of Dawn of Justice.
After the the team has assembled on screen in all of its glory, the DCEU will never be the same again, and based on how every movie so far bar Wonder Woman has been received, that might not be such a bad thing.
8. The Return Of Superman
We know he's coming back thanks to that press release from the department of the bleeding obvious we were served at the end of Batman V Superman.
If the levitating dirt on Supes' coffin was too subtle for you, Alfred Pennyworth is clearly addressing him at the end of the latest Justice League trailer.
From the look of things, Superman's inevitable return is being saved for the final act, with the Last Son of Krypton likely to arrive just in time to turn the tide of battle.
Justice League will introduce us to a world where his absence is felt, a world without hope which is vulnerable to threats such as Steppenwolf and his Parademons.
Interestingly, a number of fans on sites like Twitter and Reddit have tipped Supes to return from the grave as a villain, under the control of Steppenwolf.
This could potentially explain his absence in any of the trailers so far, but it seems like an outlandish claim now that the meeting with Alfred has been teased.
Would the movie really have the time to assemble the Justice League, reintroduce Superman as a villain for the them to face off against, and then redeem him just in time for the final battle? We're not so sure.