Thanks to Tyler for the following.
Mark Isham has once again posted a picture of one of the music cues for the episode to his Instagram account (But has since removed it). The title is "Neal's Warning" which seems to indicate that Michael Raymond-James is back!
#BTSS5 (https://t.co/FtAxyUO3uG) pic.twitter.com/3cfjzq5X6p
— Once Upon A Spoiler (@UponASpoiler) January 11, 2016
