The couple, both 25, will reportedly make an appearance on The Bachelor At 20: A Celebration of Lovewhen it airs February 14 on ABC.
Salter, a fan favorite from Chris Soules' season of The Bachelor as well as Bachelor in Paradise's second edition, got engaged to Brannen in September of last year. Salter's college sweetheart popped the question over Labor Day weekend on top of the helicopter pad of the W Hotel in Atlanta.
The "onion girl" called Brannen her "one and only love" on social media after he proposed. They both attended Auburn University in Alabama and reportedly reunited in June 2015 after she completed two stints on reality TV.
During her time in Paradise, Salter nearly fell in love with Dan Cox, but he rejected her because he saw too many "red flags." She also had a brief showmance with Nick Peterson, who went on to date Samantha Steffen.