Source: Pwinsider
Many people have noticed that WWE has not removed Gail Kim from their roster page, and have not officially announced her release. According to a source, this is because Kim quit the company, and at this time, they are not sure how they will handle the situation.
There was some hope within the company that she would change her mind and return, but that is likely not the case.
Kim has been vocal about how unhappy she has been with company for months. No one within the company was really surprised when she quit.