The clip, released on The Bella Twins official page, features Brie discussing Nikki's big day including how planning for the event is going and the type of wedding she thinks her sister will want while holding her baby daughter Birdie.
"It's crazy because she's been so busy with Dancing with the Stars and just doing so many different things that her wedding planning hasn't been the best," Brie shared.
"I really feel like she's going to have this beautiful, glam wedding but it's going to be very elegant and sophisticated," she continued.
Brie also noted how Nikki and Cena will be tying the knot sometime next year and that the couple has a date in mind.
Cena proposed to Nikki in the middle of a WWE ring in April during WrestleMania 33.