Marketing for Zack Snyder's Justice League prominently feature the Anti-Life symbol, which connects to Darkseid and his forces coming to Earth in the Snyder Cut of the movie. In a teaser for the Justice League Snyder Cut released on February 11, 2021, Darkseid's general Steppenwolf can be seen striking the ground beneath him, forming the Anti-Life symbol.
While this provides the best look yet at the Anti-Life symbol, it should be noted that this isn't the first time it's been seen in the DCEU movies. The symbol made its first appearance in Snyder's Batman v Superman: Dawn of Justice back in 2016, during Batman's "Knightmare" sequence when the hardened Bruce Wayne was gazing upon the ruins of a completely demolished city and a massive version of the symbol had been burned into the barren landscape. Likewise, the Anti-Life symbol was also briefly seen in the 2017 Joss Whedon cut of Justice League, featured during Wonder Woman's explanation of Steppenwolf's first attempt to invade the Earth, back when the world was united against him and his forces.
Clearly, it looks like the Anti-Life symbol will be featured much more prominently in the Snyder Cut, which releases on HBO Max on March 18, 2021, and that's a good thing. Essentially, Anti-Life is the entire reason Darkseid and his forces have come to Earth in the first place. The symbol itself is part of a larger sequence known as the Anti-Life Equation, a concept which comic book legend Jack Kirby came up with as a motivation for Darkseid, whom he also created. In the comics, the full and complete Equation provides the means to break free will and subjugate the entire universe. While Darkseid only has part of the Equation, he has long held to the belief that the rest of it resides within humanity's subconscious, hence his constant attempts to invade the planet. Likewise, it looks like the DCEU version will be holding to those same motivations as well.
As Batman's "Knightmare" vision of the future implies in Batman v. Superman, Darkseid's invasion would have largely been a success, perhaps even leading to him gaining his coveted Anti-Life Equation had Justice League 2's production and release gone forward from Warner Bros. This is also evidenced by teases and hints from director Zack Snyder himself in the years since its release, which indicated that Superman himself would have become susceptible to the Equation's power after the death of Lois Lane, which would have provided the explanation for his dark turn, killing Batman in Bruce Wayne's dark vision of the possible future.
Regardless, it will be interesting to learn if any new details about the Anti-Life Equation are given in Zack Snyder's Justice League when it releases on HBO Max in March. The true and dynamic motivation for Darkseid and his pardemon armies was something that the 2017 cut was sorely lacking, and it appears as though Zack Snyder intends to change that in some pretty big ways with the version of the film.
