She's a gythianki. They don't have much facial expressions compared to the other races. They are as cold as snakes. So don't expect her to smile.
no no, i'm not talking about various face expressions, she can have just one in all game, but if you look at the conversation with crasher, she looks like she will cry if you yell at her. :),
BUT it is true that Laezel facial animations, and even facial form and style/clothing, was a bit different in the recent trailer. She had less of a "warface" or proud intimating demeanor, and more of a discouraged fearful expression when noticing she is in the bloody hells!
^
exactly this!
