Spoiler alert! Kiernan Shipka is telling ET what she really thinks of Sabrina’s final scene in ‘Chilling Adventures of Sabrina’ Part 4! Plus, will we ever see Sabrina Spellman on ‘Riverdale’ or in a Netflix movie? The 21-year-old actress is dishing her plans for Sabrina’s future, reacting to those spellbinding Nabrina scenes and revealing her biggest ‘CAOS’ regret! ‘Chilling Adventures of Sabrina’ Part 4 is streaming now on Netflix.