The third season of American Horror Story primarily follows the antics and events of a witch coven, named Miss Robichaux's Academy, centered in New Orleans, Louisiana. The academy is run by Headmistress Cordelia Foxx (Sarah Paulson), who has lived in the shadow of her mother, Fiona Goode (Jessica Lange), all her life. Fiona is the Supreme witch of the coven which can only be achieved by attempting the Seven Wonders of witchcraft. Danger lurks inside the academy's past due to the mysterious butler Spalding (Denis O'Hare) and his relationship with Fiona. The entire coven is accessed and evaluated by the Council, which includes Fiona's old rival and Cordelia's mother figure, Myrtle Snow (Frances Conroy).
While speaking with Entertainment Weekly, Murphy revealed that American Horror Story season 4 will be located in, “New Orleans or it’s going to shoot in Santa Fe.”
Murphy also teased when season 4 will tale place, saying, “It’s not contemporary.” And that fans can expect to start seeing hints about the next season in American Horror Story: Coven episode 11.
While he hasn’t yet given any clues about the theme of season 4, he is ruling out one option. Murphy says that season 4 will not be a spinoff of Coven. They had been tossing the idea around earlier this year but has since killed the idea.
He reveals why the spinoff idea was shut down, saying, “We were starting to break episode 8 or 9 and we were like, ‘Well, we can’t kill that person off because we need them for the spinoff.’ As soon as those words were said, I was like, ‘There is no spinoff.’ Because it took away from the joy of the show. The reason the show is successful is no one is safe ever.”
In addition to this, Murphy has previously teased that he would like Kathy Bates and Angela Bassett to be involved in season 4. Jessica Lange has said that American Horror Story season 4 will be her last of the series.