Board Thread:General Discussion/@comment-202.94.42.108-20150603100910/@comment-4010415-20150603132436

The picture on Yang's phone is supposed to be of her mother, not Blake. Monty even said straightup that the picture on Yang's phone was not Blake. Also, the Yellow Trailer happened before the start of the series, most likely shortly before the very first episode, as you see Roman talking to Junior to hire some of his henchmen.

All four trailers happen before the series, in fact. The Black Trailer shows the day that Blake left the White Fang. I'm pretty sure she really did leave and is not a spy.