While most of what we knew about Wonder Woman 1984 was slim, over the past year, things have come to light, helping form a fuller picture of what Diana Prince will be up against in the sequel. Unlike Wonder Woman which was set during World War I, the sequel will follow Diana Prince in the ’80s, before the events of Batman v Superman: Dawn of Justice.
Article source: https://www.cinemablend.com/news/2553965/zack-snyders-seen-wonder-woman-1984-and-shared-his-thoughts