The trailers and promotional materials for Diana Princes’ upcoming solo adventure have thus far have depicted the Amazonian princess wielding the “God Killer” sword, but scenes from Batman v Superman and Justice League (which take place in the modern era) don’t.
We should also point out that this more imminent arrival for Mr. Wilson could potentially have implications for Wonder Woman as well.
Deathstroke is known for wielding the God Killer in various incarnations of the comics, so we’re not ruling out the possibility that he will somehow manage to get his hands on it between Wonder Woman and the beginning of Justice League.