Yonhap News/Newscom

SEOUL, South Korea - The latest North Korea rumor mill is a possible fourth generation Kim in sight for the ruling family.

In film footage released this week, its first lady Ri Sol-Ju appeared for the first time in two months with a visible baby bump. Ri and her husband Kim Jong Un were filmed together at a musical concert to mark the 60 th anniversary of the Kim Il Sung Military University.

Kim is the grandson of the communist nation's founder Kim Il Sung. He took power following his father Kim Jong Il's death in December.

Speculation had been swirling that Ri was either pregnant or put under house arrest for her excessive cheerful attitude in public. The rumor was that the state elders preferred a more conservative ladylike wife for their young leader who is believed to be 29 or 30 years old, according to South Korea's Chosun Ilbo.

Ri had been seen on North Korean media during the summer with her husband in state events. Her sense of fashion - colorful suits, polka-dot dresses, heels, and even a Christian Dior bag - and public display of affection like holding hands or walking arm-in-arm with the leader had surprised North Korea watchers.

But just when all were wondering where has the ex-singer-turned-first lady of the world's most secretive state had gone, she came back wearing an elegant knee-length cream jacket with matching strap covering her belly bump. It may be her second child as there are rumors that they already have a son or daughter.