User blog comment:GekkoMoria/Theory about the S.A.D./@comment-3119203-20120912161922/@comment-4605926-20121031150900

I think I agree with you. I don&apos;t think Luffy would&apos;ve agreed so easily to take down a Yonko that he doesn&apos;t at least hold a grudge against. Luffy&apos;s nuts but he won&apos;t hurt anybody without any past quarrels of some sort.

Even though Blackbeard&apos;s also a possiblity I doubt that, in addition to the already threatening Big Mom, Luffy (or rather Oda) will add another highly formidable adversary so early into the New World. I think it&apos;d be just too much, both for the series and for the crew that was just recently (at least episode wise) crushed entirely. Therefore, it is the safest to assume, in my opinion, that out of the 4 possibilities, Big Mom is the one.