The story on her turned murky again. No further story on her leaked out of NK. When Kim Jong-il visited China earlier this year, there were photos in which a woman in mid-40's was accompanying him to the state dinner and some meeting with Chinese leadership. Media suspected that she is the 'reigning' Mrs. Kim Jong-il and could be Kim Ok, because her age judged from the photos is in the ballpark of Kim Ok's age based on available information on her.
However, she could be No. 5, the new lady after Kim Ok. However, she could have definitely been in succession intrigue and her departure, if true, may have been the result of some infighting.