"Justice League" was intended to be the introduction of many DC characters to the DC Extended Universe. However, Iris West will not be one of them, as her cameo, which was meant to introduce her, was removed by director Joss Whedon.
In an exclusive report by Batman News, Kiersey Clemons, who plays as West for "Justice League," was nowhere to be seen at the current version of the film seen by a test audience. The character is the second to be dropped, as Lex Luthor, played by Jesse Eisenberg, was also cut from the movie. Iris and Lex's removal are not the only changes made by Whedon. Darkseid, built up as the main antagonist of the franchise, will be primarily absent from the "Justice League" movie.
However, there is still hope for the deleted scenes from "Justice League" to be seen in the future. As IGN reported, the Ultimate Blu-Ray edition of "Batman v Superman: Dawn of Justice" included scenes of Jena Malone, which was left out of the movie's theatrical release. Aside from this, Clemons' Iris West is also slated to appear on the Flash standalone film starring Ezra Miller. Titled "Flashpoint," the movie will be based on the time-traveling storyline from the comics. The storyline was previously used as the basis for the direct to video animated movie in 2011 titled "Flashpoint Paradox."
Zack Snyder, who bowed out of the film due to the death of her daughter, has been mostly distant on the direction Whedon is bringing "Justice League." Whedon, who was previously part of the Marvel Cinematic Universe as director for the first "Avengers" film and as a creative adviser for other MCU films, has requested several reshoots for the movie after the original cut of the film was deemed "unwatchable" by the screen test crowd.