A new trailer for the eighth season of The CW's cult fave Supernatural has been released, revealing exactly what evil-fighting mission the Winchester brothers will be tasked with this year. And boy, is it a big one.

Coming into its eighth year, some might say The CW's demon-hunting series Supernatural is getting a bit long in the tooth. New showrunner Jeremy Carver is inclined to agree, but he says he has a plan to fix that—a semi-reboot of the series this season.

The number of active series we're following these days is dwindling a bit as we watch the fall shows end and wait for the summer shows to begin, but there's still plenty to talk about. This week Grimm finished its first season with a strong finale, while Supernatural broke even in the final week of its seventh season.

With renewal season upon us, The CW has made its first batch of decisions about which series it will be bringing back next season. So, how did Supernatural and The Vampire Diaries fare?