User blog comment:Fliu/Chapter 926: Hungry Hungry Hippo/@comment-24850639-20181204162654

In the Flower Capital, a mysterious man named Kamazou has slain someone on the 8th street of district 2.....Sanji has opened a noodle stand in the Flower Capital, prominently featuring a noodle that is notably 8 parts soba flour - 2 parts udon flour ("nihachi" soba)....where he has attracted the attention of a silhouetted figure... *Queues Twilight Zone music*

On a slightly more serious note, a prominent feature of one of the remaining 2 samurai is a lengthy ponytail that is angled to the left, and Oda deliberately cut off the left half of this figure's face in the silhouette. Ashura Douji & Shutenmaru turned out to be one in the same, likely a reference to the legendary Shuten-Doji. I'm certainly willing to bet that Kamazou = Kawamatsu.