Note: Sabrina will arrive on Riverdale in season 6's fourth episode, titled "The Witching Hour(s)."
Thanks to Tyler for the heads up.
Riverdale Writer Evan Kyle did a Q&A with thedipp.com after last night's episode. He has seemingly confirmed that Sabrina will be appearing in the special 5 episode event.
Original Article: LINK
Question & Response confirming Sabrina: LINK
