American Horror Story: Ryan Murphy on Wednesday's huge twist and a return to Coven 

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fans won’t want to miss. As EW exclusively revealed, episode 6 of

is the game-changing hour that turns the entire show on its head. “It’s the biggest plot twist we’ve ever done on the show,” said co-creator Ryan Murphy on a conference call this morning. “The season was sort of written as if the season was two different shows. Something happens where half the cast is revealed to be playing and doing something absolutely different than you’ve seen in the first five. There’s a startling announcement at the end of act 3 that resets the rest of the season up until episode 10.” 

Here are some other highlights from the Murphy chat: 

Both Taissa Farmiga and Finn Wittrock will be appearing on

. In terms of Farmiga, who hasn’t been on the franchise since

, Murphy said it was simply due to finding the right part for her. 

Murphy confirmed that Lady Gaga’s witchy character on

Speaking of that spellcasting installment, Murphy confirms they will return to the storyline of

in a future iteration. “At some point, we’re going to do a return to the

season. I don’t know what season that will be.”

season 7 will also find itself connected to a previous season. “Next year, we will be going back to some

characters, deeper histories and myhthologies. So we’re sort of still exploring season 4 in season 7.” 

but the mythology and some of the characters will continue in subsequent seasons. So it’s the ending but not the ending.”

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