It might happen. The delay of this group has fucked with Future 2ne1 who was supposed to debut nx yr. YG won't debut another ggrp in at least 5 or even 6yrs. And i don't see girls in their teens waisting another 5 6 yrs in yg basement to debut. I think YG might even be thinking of putting some of those future girls in this group.
And this group lost all its hype the moment YG announced that they were going to be 4-5 and now twice pretty much has all the hype in korea.