User blog comment:Godisme/BORN IN THE DARK/@comment-2220308-20121031235611/@comment-2220308-20121101173522

But that's what I'm saying. I think Kubo had this planned, at least since the beginning of this arc. Perhaps not when he first introduced Grand Fisher and the Quincy, but it's possible since Isshin was revealed to be shinigami. Ichigo's lineage has always been kept in the dark, and extremely vague. So there is a chance this was planned for some time, or perhaps something like this. Maybe over time it evolved into the idea that Masaki was Quincy, but I personally believe Kubo had this planned since at least the start of this arc (when he also noted in an interview he would go more in depth about Masaki and Isshin, and Ichigo's birth, and him being a true blood, etc.). Have some faith in it right now, it's not fanfiction level yet.