Supernatural Scoops: An Old, Cranky Dean Winchester; The Return of Jo Harvelle

Enjoy season five of Supernatural, fans. It might be the show's final one.

What can viewers look forward to over the next few months? According to E! News, at least this pair of developments:

• A flash forward to a 70-year-old Dean Winchester;
• The return of Alona Tal (pictured) as Jo Harvelle for at least one episode.