While Wonder Woman is a popular character, this is her first live-action movie, so it’s important to hook viewers (particularly casual audiences) immediately.
Suicide Squad is scheduled to arrive in theaters on August 5, 2016; Wonder Woman is slated for release on June 2, 2017; followed by Justice League on November 17, 2017; Aquaman on July 27, 2018; an untitled DC Film on October 5, 2018; Shazam on April 5, 2019; Justice League 2 on June 14, 2019; an untitled DC film on November 1, 2019; Cyborg on April 3, 2020; and Green Lantern Corps on July 24, 2020.
The British Film Board of Classification classified a preview for Wonder Woman, saying it will run 2 minutes and 45 seconds.
This is also the only time WB can promote the project at SDCC, since Wonder Woman will premiere in June 2017.