Geoff
Sir "Let's Play"
I won't lie, I was very disappointed by Season 9. It had a few decent episodes, but overall it was probably the worst season of the show. But ending it with Dean becoming a demon? Very excited to see what he can do.
And for any Supernatural fans, I'd like to point out that Dean is not black smoke inside his own body, he is simply a demon, so his body isn't possessed. =P