While the film begins shortly after Diana’s appearance in Batman V Superman: Dawn of Justice, Wonder Woman primarily takes place during World War I: the time period in which Diana first entered the world of mortals and took the name Wonder Woman.
Those scenes we’ve witnessed so far have a similar feeling to those in Thor, with the godlike Diana confused by the world of humans.
There are a lot of DC Extended Universe films in some stage of development right now, but Wonder Woman is for certain the next one hitting the big screen.
Joining the conflict, she faces off against Doctor Poison and Ares, the God of War, but also spends a considerable amount of time in civilian garb with Steve Trevor and his allies.