AOA reported to debut a new sub-unit

We will get a new sub-unit from AOA this year.

According to the music industry insiders on January 18th, AOA's new sub-unit will make their debut between late of January or early February. Three members will be included in the sub-unit and they are said to be in the final stages of preparations.

The group's first unit AOA Black consisted of Jimin, Choa, Yuna, Youkyung, Mina made their debut in 2013. They also have AOA White as a non-promotional unit with Seolhyun, Hyejung and Chanmi.

Which member do you think will be in the new sub-unit?