User blog comment:Rafe Adler/"Byzantium" Discussion/@comment-1031724-20181208201610

Here's a thought on the Lucifer thing - What if this wasn't a means of reviving Lucifer, but a means of awakening Cosmic Entity to lead into the Jack situation to kill Castiel the final time, on account of Misha getting tired of the show like Mark Sheppard was? As well as maybe setting up Cosmic Entity to be the next villain after Michael is killed by Dark Kaia's spear next episode. (Though if Michael dies, and Jack doesn't get his grace back, and Lucifer isn't revived, what's to keep Heaven from collapsing due to lack of angels? Unless Rowena sends OUR Michael to Heaven's jail, or the Cage there altogether. They barely addressed it this season, as it was mainly Cosmic Entity threatening Heaven)

Because, can Cosmic Entity even revive Lucifer if he wanted to? Archangels are not resurrected nearly as easy as regular angels, plus when Castiel's spirit awakened, he was in the form of his vessel, Lucifer was in a skeletal form, presumably because he was an archangel. Lucifer's awakening could have been a means of Cosmic Entity staying awake, this time beyond his control.