Carver also hinted that Season 11 of the “Supernatural” will see Sam and Dean trying to figure out who is The Darkness, what does it want, and how powerful it is. Because the only way to defeat a supernatural force is to know what it is and determine what its weakness is, if any.
When Sam and Dean get into their senses and start dealing with the havoc that they just unleashed, they will realize that only the two of them can stop The Darkness and contain it once again.
While it was not intentional on their part to unleash The Darkness because Sam only wanted to save Dean, they have become more united than ever in the cause and will share the same thinking that since they broke it, they will be the one to fix it too.
The premier episode of Season 11 of “Supernatural” will be titled “The Bad Seed” and it looks like it is referring to the femme fatale Amara who was summoned to earth when The Darkness was unleashed during the series finale of Season 10.
Amara is described as somebody in her late 20s who possesses an acid tongue and seductive beauty, but the production are still mum on who will be the actress who shall take on the new villain character.