With The CW's Supernatural about to wrap up its series' run on the network after the current 15th season, fans have been throwing around a wide range of theories on what the series-ending season will mean for the Winchchesters – which is understandable, all things considered.
Supernatural — "Proverbs 17:3" — Image Number: SN1505B_0314b.jpg — Pictured[...]
