It's Misha's turn!  In our roundtable interview in the San Diego Comic Con press room today, he gives some interesting hints about Castiel's fate.  We'll give the "Spoiler Alert" here but honestly, it's more teasers that will likely fuel wild speculation.  The only thing he will confirm is that in the beginning of the season, Castiel is dead.  
 
 
 
Transcription of interview coming soon...