We have the description for episode 19.
“The Future” — (8:00-9:00 p.m. ET) (Content Rating TBD) (HDTV)

KELLY MAKES A BOLD CHOICE – Sam (Jared Padalecki) comes up with a way to stop Lucifer’s (Mark Pellegrino) baby but Castiel (Misha Collins) has something else in mind for Kelly (guest star Courtney Ford). Dean (Jensen Ackles) is furious when he finds out someone stole the colt. Kelly makes a bold choice about the baby’s future. Amanda Tapping directed the episode written by Robert Berens & Meredith Glynn (#1219). Original airdate 4/27/2017.
Another big mytharc episode! How will Sam stop Lucifer's baby? What will Cas's plan be? Will being in Heaven have influenced Cas's thoughts? What choice will Kelly make about her baby? And Hi, Amanda Tapping! Good to have you back, this time behind the camera! What do you think about this synopsis? Let us know in the comments or in the discussion thread for episode 19.