How many members will debut as Baby Monster?

According to this new teaser released by YG Entertainment, Baby Monster's final lineup will not consist of the seven members. In the video, Yang Hyun Suk specifically reveals to the trainees that "Baby Monster definitely won't be seven members." Which members from the current lineup will make it to the debut?

This new survival reality program 'Last Evaluation' will complete the journey toward the new girl group's debut. Although fans in the comments are clamoring for all seven members, the teaser has already been set for this new program to decide on the final lineup, "coming soon."

What are your thoughts?