one piece chapter 658 can be read in this page and will be updated to bring you the anticipated scanlations on its release date.
I don't think the Shicibukai mentioned by the legs is involved in the "affairs" of the island. That's why i believe M and the shicibukai aren't the same person.
But as time goes by i'm starting to doubt that M is Vegapunk , i mean i really wanna believe that he's a good guy despite him working for WG. Experiments on children(if that is the role of those children) It isn't something i wish to see the genius involved in.
