In Season 4, OUaT introduce the concept of the Author. A figure who's role is to observe and record stories. However, the Author is forbidden to alter the course of these stories, or given themselves a happy ending.
Henry is the current Author, and his wife was revealed to be a variation of Cinderella. Is it possible that all the horribly things that will happen in Season 7, are consquences of Henry inserting himself into the stories he just meant to observe?