Supernatural only brings in Rowena when she has something to gain, so we doubt this will go well for the Winchesters.
Supernatural episode 1414, “Ouroboros,” will see the Winchesters on a hunt for a new way to keep Michael at bay.
THE CHICKEN OR THE EGG? — Sam (Jared Padalecki) and Dean (Jensen Ackles) enlist the help of Rowena (guest star Ruth Connell) to track down a demi god who feasts on human flesh. The challenge of keeping Michael at bay is proving to be more difficult than originally anticipated.
Supernatural episode 1414 airs on March 7, 2019.