Fantagio had said last month, "Choi Yoo Jung and Kim Do Yeon renewed their contracts while promoting in IOI. They're formally promoting as artists."
And then, following that on January 2, a rep also brought up the possibility of them debuting as a girl group early this year! The rep stated, "At the earliest, we plan to debut a new girl group with those two in it. However, it's too early and hard to rashly say at this moment the concept, how many members, and more."