>>52926327After reading the VTA Wiki, FalseEye is right. Unless these 12 debut soon, Nijisanji did 'shut down twelve agency vtubers.'
Past debuts were quickly announced after the deletion of their content. Having 12 deleted at once with no word about them is remarkable, when it was only 1-3 at a time in the past. So, it was the rest of the 2nd branch, except one. And half of the 3rd branch was deleted (terminated, graduated, shut down, etc.), Nijisanji could just be slow this time in announcing their debuts, but wouldn't hold your breath on that.