Here"s a dream scenario for getting rid of (the obnoxious, over-inflated ego hellbrat) Lucifer:
Get Michael out of the cage.
Put him in his true vessel (the FERRARI of vessels, I’d like to add), and that alone will fix him in no time.
Then sic him on Lucifer in his badly repaired Prius of a vessel and BAM! Bye-bye Lucifer once and for all.
Oh, and at some stage during all the BAMF-ing have Michael say, real casual like:
“WHO’S the older brother?”
THAT’LL teach him.