Here's some scoop on Riverdale from Entertainment Weekly's Natalie Abrams' The Spoiler Room column, which was posted on 3/31/17.
Will Riverdale ever get around to addressing the clear twincest between Cheryl and Jason? — Casey
Yes, actually. Look for episode 10 to address that situation head-on. “That theme, from that point forward, is developed in a very, very real creepy way,” executive producer Roberto Aguirre-Sacasa says. “But maybe not in the way you expect.”
Link to the full article:Spoiler Room: Scoop on 'Westworld,' 'Grey's,' 'Once Upon a Time' and more