Spoiler alert if you have not seen all of this season stop reading now.  Ok you were warned. 

So we now know who god is/was.  Did you have an idea? Some things kind of make sense if you remember seasons past. Couple weeks ago  or so, maybe a little over a month. I read a story where they said they had not filmed the final episodes yet.  The rumors were that GOD would make an appearance before the end of the season.  I told my wife shortly after that I think I know who GOD is going to be. As the " That was Then " opening began and they showed Chuck I said. " See I was right, Chuck is going to be GOD".  Low and behold it was Chuck.
    So what do you think of the twist in the story line?  I thought that was one of the best episodes in a LONG time. Kind of makes me wonder . How will they have another season? How will Sam and Dean still have story after meeting GOD?  Is he going to wipe their memory of him after they defeat Amara?  Should be interesting.