So I was listening to "More Morrison" on Fat Man On Batman and Morrison mentions that his Earth One book has a title (or a subtitle) "Wonder Woman: The Trial of Diana Prince" and that he is presenting the book as Diana going through a trial.
If I remember correctly he is mentioned that she is basically brought back and put on trial by the Amazons. I think Trevor is a witness there.
'm guessing we won't see this until the Spring or Summer of next year as he also mentions Yannick Paquette has only finished 20 pages of his 120 page script so far.
A bunch of uncolored pages have already been posted. They look fantastic.