The 'I Have Nothing' singer's daughter Bobbi Kristina Brown, sister-in-law Patricia Houston and brother Gary will talk about the star's death for the first time in a special edition of Oprah's Next Chapter, airing on the OWN network this Sunday (March 11).
In the interview, Houston's manager Patricia admitted that she would be "kidding herself" to dismiss fears that the 48-year-old's past drug addiction contributed to her downfall.
Asked by Winfrey if she ever felt that drugs would end up "taking" Whitney, Patricia replied: "The handwriting was kind of on the wall."
However, she insisted that Houston's final days weren't "about substance abuse or anything like that".
"It was just more of a lifestyle," she explained. "I was afraid for other things. I saw her chasing a dream, you know, looking for love in all the wrong places."
The full interview will be screened on OWN at 9pm EST, following a re-airing of Winfrey's 2009 chat with Whitney.
Watch a promo for Oprah Winfrey's interview with Whitney Houston's family below: