User blog comment:FTWinchester/On Metatron, the Word of God, and their Purpose/@comment-5619706-20121115043953/@comment-5619706-20121115192657

Then, Sera and Seasons 6 and 7 happened. Sera wouldn't confirm it. So the writers have at least plans to keep it open for reinterpretation/retcon. I'm not saying Chuck IS Metatron. Just saying that if ever the writers reinterpret Chuck's character, he could easily be Metatron. Especially since his name was worth mentioning in the last episode dealing with prophets who can read Metatron's works, and also considering Metatron's absence (just like God's).