I usually hate when people here are quick to dump on a potential film/show/etc., but based on what's in that trailer, I don't see there being any female TF in this one. Nothing in that trailer implies, or even hints that the main actress could be a werewolf, aside from maybe the one shot with blood around her mouth. Maybe another female character is revealed to be behind it all, I have my doubts.
What may be the biggest nail in the coffin for me is that when viewing the list of actors on
IMDB, there is a listing for a character named "Walter", and then a character named "Full Moon Walter". This may be an accidental hint as to who the wolf ends up being revealed as. Shame, as the main actress is a cute girl. Wouldn't have minded seeing her transform.