User blog comment:Kaido King of the Beasts/Chapter 840: My Worthless Son/@comment-106.71.213.9-20160921131348

I know this will sound farfetch but i'm starting to think that Oda is hinting that Sanji will be able to use haoshoku haki. Just how this went on about how useless weak was and wouldnt amount to anything. It would just be a huge kick in the teeth to Judge and the brothers that the 'Useless' one is the one with the quality of a king.

But all and all i honestly can't wait til the Vinsmokes fall, Oda has done a great job at making them hateable