In the theatrical release of Wonder Woman, we never see what becomes of Etta Candy and the rest of Steve Trevor's team after that emotional final WWI-set scene, but now a deleted epilogue titled "Etta's Mission" sheds some light on what they were up to.
Here we see Etta (Lucy Davis) gathering the boys together for a secret mission. It seems they've been charged with delivering a "very old, very powerful" artifact to The Americans, something that could be devastating if it fell into the wrong hands.
Though the artifact in question is not named, it's almost certainly one of the Mother Boxes that the villainous Steppenwolf will be hunting for in Justice League.
Check out the scene below, and keep an eye on CBM for more Wonder Woman special features as the film's home release draws nearer.