In addition to the narration referring to "No Green Lanterns", fans saw a figure in the reflection of Alfred's glasses with a small glowing green object. Going off of that, Vahe Tumanyan spotted another moment at the 3:14-minute mark that suggests a Lantern riding into battle with the League towards the end of the film.
As you can see in the image below, Batman's Flying Fox transport vehicle is seen shooting towards the water, and at two spots there is a green light seen outside of it.
Now normally this would just be associated with the vehicle itself, but the Flying Fox is of much bigger scale than Batman's other flying vehicles, so this could be a person in a green bubble or force field thanks to the scale difference.
It seems a Lantern is going to be part of the League after all, but as to who it will
You can check out the newest trailer for Justice League above, and the description is included below.
In Justice League, fueled by his restored faith in humanity and inspired by Superman’s selfless act, Bruce Wayne enlists the help of his newfound ally, Diana Prince, to face an even greater enemy. Together, Batman and Wonder Woman work quickly to find and recruit a team of metahumans to stand against this newly awakened threat. But despite the formation of this unprecedented league of heroes—Batman, Wonder Woman, Aquaman, Cyborg and The Flash—it may already be too late to save the planet from an assault of catastrophic proportions.
Justice League is directed by Zack Snyder, from a screenplay by Chris Terrio, and features an ensemble cast that includes Ben Affleck (Batman), Henry Cavill (Superman), Gal Gadot (Wonder Woman), Ezra Miller (The Flash), Jason Momoa (Aquaman), Ray Fisher (Cyborg), Ciarán Hinds (Steppenwolf), Amy Adams (Lois Lane), Diane Lane (Martha Kent), Jeremy Irons (Alfred Pennyworth), J.K. Simmons (Commissioner Gordon), Amber Heard (Mera), Kiersey Clemons (Iris West) and Jesse Eisenberg (Lex Luthor).0comments
Wonder Woman is in theaters now, and will be followed by Justice League on November 17, 2017; Aquaman on July 27, 2018; Shazam on April 5, 2019; Justice League 2 on June 14, 2019; Cyborg on April 3, 2020; and Green Lantern Corps on July 24, 2020. The Flash, The Batman, Dark Universe and Man of Steel 2 are currently without a release dates.