Moore’s pregnancy last year at her age led to health complications and an emergency cesarean section.
"I was disappointed (not to be on the show again)," she told People in December. "It broke my heart, but with all the stress, I don't know how I could have done it."
Once news of her return was confirmed, Moore made a celebratory Instagram post with a behind-the-scenes photo from an earlier season of the show.
Moore’s mere presence at the end of season 12 led to another rift between former friends Cynthia Bailey and the only remaining original housewife, NeNe Leakes. Bailey’s friendship with Moore angered a jealous Leakes. Both Bailey and Leakes are returning.
Porsha Williams, Kandi Burruss and Eva Marcille are also set to come back as regulars.
Shamari DeVoe, though, has been reportedly demoted to "friend" status, which means part-time appearances. Tanya Sam and Marlo Hampton will also be part-timers again.