User blog comment:KressKross/Does Weiss actually sing?/@comment-3146930-20140806031006

There have been a lot of forum and blog posts about how real the trailer is. A majority of the users on here say that at the very least, the battle with the night is a metaphor for some other conflict in her life or the battle is taking place in her mind. This is because as Weiss is about to land the finishing move, in her eye is a reflection of herself where the knight would be.

Others have argued that both the singing and the battle are also in her mind, making the entire trailer hard to define. If we find out that Weiss has a type of happy place she goes to when fighting or trying to make tough choices, it could make the trailer canon from a certain point of view.