In this shot, it seems to be taken off the monitors of one of the film's cameras, given the timestamps and the like you can see. You also can't see nearly as much in the way of detail around The Joker's tattoos, since the contrast is so high and the lights obscure a lot of detail.
Check it out below.
the Joker is here .. pic.twitter.com/ukc2C3dzR8— D△̵RIANˈˢ (@ApocalypticSoul) April 25, 2015
Ayer will direct the film, which stars Jared Leto as The Joker, Margot Robbie as Harley Quinn, Will Smith as Deadshot, Jai Courtney as Captain Boomerang, Joel Kinnaman as Rick Flag, Jay Hernandez as (we assume) El Diablo, and Cara Delevingne as Enchantress. Viola Davis will play Amanda Waller and Common will play an as-yet-unidentified role. Ed Harris and Jackie Earle Haley are rumored to appear as well.
Suicide Squad is expected to start shooting this month for a release on August 5, 2016.