It's reported that Zhao Yunlei is enlisted as the National 1st Team Women's Doubles coach assisting the chief WD coach, Pan Li. There were rumours earlier about it but at the press conference for the 2018 Wuhan Badminton Asia Championships , Zhao Yunlei formally confirmed the verity of her appointment.
http://sports.sina.com.cn/o/2018-01-31/doc-ifyrcsrw1587993.shtml
I shan't translate the entire article as for the most part it chronicled her career achievements except the last paragraph which I find new, worth reporting and interesting:
After the Rio'16 Olympics, Zhao Yunlei retired from the national team, switched roles from player to student by returning to Beijing Sports University to complete her master's degree, at the same time she enrolled herself in the Qinghua Management Institute's (career) training program.
In June 2017, Zhao Yunlei was elected as the first chairwoman of the Hubei Badminton Association. In August of the same year, she led the Hubei provincial team to participate in the 13th National Games of China at Tianjin, capturing the Women's Team Silver medal,achieving the best result in the history of badminton for the Hubei Provincial Team.