when was the last time we killed a female character?
Sylvanas got away, Kyrestia survived, Azshara survived, Jaina escaped, Sygrin survived - it leaves us with Ashvane in 8.2, Vexiona in 8.3, Ysera in 7.0 (temporarily) and Zaela in 6.0?
i do not consider passing punching bags in raids and dungeons as "female characters", as they have little to no pre-established story.
i am not actually saying that we won't fight her - but rather than a villain, that would make her confused and/or misguided. she could easily be corrupted and/or be prejudiced against twilight drakes though. racism is no joke.