Well, they were mentioned in the latest chapter and seem to have polluted the waters. Do you have any ideas what they might be producing? Kaido and his crew were all about Artificial Zoan DFs production but that has been stoped. It appears they are producing something else, 90% sure it is a weapon or a weapon material. Extreme chemical warfare was displayed on Zou, so there has to be a connection. Can it be something else?
Now, this production and Art. Zoan DF production seem to have been conducted separately, which insinuates the possibility of revealing a new scientist character being in charge of the on-going production. It is not Ceasar, Judge nor Vegapunk, maybe a calamity.