We'll be seeing more of the war in Heaven, and Cas will be confronting Eve. But will Cas be wearing chaps? Misha Collins gave the answer to Watch With Kristin.
"In the final episodes this season, we're getting more into the battle in heaven, and we're even going to touch back on Sam's soul. The end of the season is very dialed into the season-long mythology...Cas does spend time with the Mother of All lady, and Cas does not go to the Wild West. Missed opportunity. He could have worn chaps."