^Moved post since it doesn't directly pertain the most recent chapter.
I'd say it's a possibility, since Shiki will definitely be used at some point in the story with how Oda bothered to make mention of him in the manga and give him focus in the Chapter 0 special. Whether or not the living legend in Wano is Shiki is pretty arguable, seeing as how assuming he's the guy drinking with Crocus he'd have to have gotten to Wano before Luffy when the route from Whiskey Peak would've obviously taken far longer than the Straw Hats' starting point. I wouldn't say it's completely out of the question, seeing as how the Straw Hats' journey pace was slowed down by constant battles, but it would seem to still be an unlikelihood logistically.
The pieces do add up, so I'd say it's still a possibility. I do have doubts when it comes to the hairstyle, seeing as how Oda would probably like to keep Shiki's more distinctive design intact. Regardless, the figure is still likely someone important to the Wano plot such as one of Roger's crew or an ally of Oden.
