Kim has three daughters -- Brooke Brinson, 29, Whitney Davis, 25, and Kimberly, 20.
ET has also confirmed through a source that former Hills star Heidi Montag and her mom will be on the show as well.
The 51-year-old reality star entered rehab for the fourth time in April after she was arrested at the Beverly Hills Hotel for public intoxication. Not long after hitting her 30-day sober mark, Kim attended her daughter Brooke's wedding. Later, she told ET that she may have relapsed during the ceremony. In August, she was arrested for shoplifting at a Target in Van Nuys, California.
However, in October, Kim seemed to be turning over a new leaf when she moved into a one-bedroom, one-bath condo in Westwood, California -- a neighboring town to Beverly Hills. At the time of her relocation, a source told ET that Kim was doing well, saying, "She's focused, she's sober, she's happy."
On Nov. 6, Kim was snapped shooting scenes for season six of RHOBH. While she has not come back as a full-time cast member, she was asked to appear in a few episodes.