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Well from what we do know the woman who appeared in the new trailer, MAY be the heroine, and so far they aren't getting along too well. As for the blonde guy, he and Storm seem to be on good terms, for now any ways.
I have theory about the new woman in the trailer, it may relate to her relationship with Storm.
There are some things though that make me doubt whether she truely is the heroine, for example if the woman on the logo is the heroine (Note: This is not set in stone, but she's the most likely canidate, aside from the woman that was revealed in the trailer) then the woman who appeared in the new trailer may not be her.
A) The hair is different, the woman in the logo has slicked back hair while the woman in the fan art (so this my not be totally accurate) clearly has bangs. Also here hair is significantly shorter, yes it is true that the artist who makes the logos exaggerates things, but I have never seen things exaggerated THAT much.
B) The skirt is different as well, it is not tathered at the ends like the womans skirt in the logo. Also it's significantly shorter than the woman in the logo's skirty. Again my point regarding the hair.
C) The woman in the fan art appears to be wearing boots while the woman in the logo is clearly shown wearing high heels.
D) The shirt also different, the woman in the fanart is wearing a sleeveless vest, with a black shirt under it that covers her whole torso, while the woman in the logo is wearing a long sleeve shirt with intricate designs, it also reveals some of her stomach. Also the woman in the fanart does not have the veil.
That is why I have my doubts about this newly revealed woman. Further considering the past logo's the character in the versus logo is significant which in my opinion rules her out as a supporting character. She then falls into on of two roles: the leading female or the villainess. It's possible that the woman in the trailer may be the main supporting female role. Of course at this point nothing has been set in stone.
Note: This was taken from my reply in the heroine thread.