User blog comment:Kaido King of the Beasts/Chapter 810: Crucify and Chill/@comment-24850639-20151217195401/@comment-24850639-20151217221047

Zou being Uranus maybe, but its not far-fetched at all to assume Zou might have something to do with it. The last reference to any of them was back in Fishman Island, so I'd say we're probably due for some new knowledge if all other reasoning fails lol. But a statement like Pedro's plus the age of the island to me is enough evidence that we'll at least get something. "World is waiting" to me implies something that has either never happened before, or hasn't happened in a VERY long time. Assuming that

A) The Mink Tribe has ALWAYS lived on Zou, even through the Void Century

B) Zou/The Mink are not affiliated with the WG

C) Inu and Neko's brush in with Shanks was after his experiences as a Roger Pirate

They definitely know SOMETHING.