User blog comment:Chicken Bond/BIONICLE's Return?/@comment-876769-20140714064927/@comment-876769-20140714171940

It's translated from a Russian source. My guess is that Copac is Kopaka, and 'Toa' has been changed to 'Master' because the Agori/Matoran societies have become one, and a new title was needed. I also think the Defenders of the elements is also mistranslated, and could be the Element Lords. They were meant to be the 2010 antagonists, after all. And bear in mind that this is only the first wave, so we may see a lot more characters and stuff later in the year.

If the pictures are to be believed, it's possible that each 'Defender' set comes with a smaller Skull Spider. It's possible.