The problem with current OP is that it's hard to tell if something is genuinely a mistake, or Oda deliberately showing something. We all remember that chapter where things were off and people assumed the strawhats were dreaming, and how Gunko wasn't given a CD name at first, and Shamrock didn't have Saint in his name. All got fixed in the volume release.
So now we have a relatively peaceful looking Mariejois, Luffy no longer having his Elbaf clothes, or Loki showing lightning powers while in Seastone.....
All mistakes or what?