However, just because theyve thought about it doesnt mean they have an exact answer.
If youd asked me season 1, I wouldve thought that it wouldve been the apocalypse.
But then again, you cant end the TV show with the worst thing happening, Ackles says.

Credit: Liane Hentscher/The CW
I think weve taken some really good turns.
Padalecki adds, Its changed a lot over time.
But Padalecki realizes thats not the only viable option.
All of those kind of leave room for opinion and room for interpretation.
I dont think we should see the boys die or live, we should wonder.
Regardless of the exact circumstances, Padalecki says theres one very important rule: The boys cant stop fighting.
As long as theyre alive, theyre not going to stop fighting.
Were going to have to see them continue to do good together.
I think thats whats the most important part.
The key words there?
As long as theyre alive.
I dont really know where its going to go.
I always thought Dean would make the ultimate sacrifice for his brother.
I guess if I had to choose something, thats probably what I would choose.
Supernaturalairs Wednesdays at 9 p.m.
ET on The CW.