My only complaint if I had one is they need to get a bad guy like they did in the first 5 seasons. I love Crowley and all but I'm tired of him being the main bad guy.
Yellow eyes was just pure evil. Lately they have kind of made the guys goofy (devil and crowley). and the fact Crowley is always some how helping them while also stabbing them in the back..
I'm sure they will make one of the fallen angels the bad guy in this next season (similar to raphael?)
Are the demons still there? I can't remember if they locked the gates of hell or not. If not I'm sure that will somehow be apart of this season again.