Show creator Roberto Aguirre-Sacasa announced the news on Twitter.
"The #Riverdale universe expands! Thrilled to be bringing the adventures of Katy Keene and her New York pals to life! Extra-thrilled to be doing this with my pal Michael Grassi @thatthingofwhen! ❤️🧨💥💎💋💃🏻👠👛🧵👨🏻💻"
According to The Hollywood Reporter, this new spin-off will focus on Katy Keene, an aspiring entertainer.
Per THR, the show will focus on Katy and three of her "iconic Archie Comics" friends. Those may include Gloria Grandbilt (a rival of Katy's), Lucki Lorelei, K.O. Kelly (one of Katy's boyfriends), and Katy's comic-book sister, Sis.
Oh, and it's a musical! Well, a "musical dramedy," centered on the friends trying to make their dreams come true in the NYC.
No release date has been announced.