I haven't looked much into it, as I will come to know all when it is all rolled out.  I am a fan of a dwarf class, but, I understand that the majority of the classes in this game are human.  There's a few elves, and rightly so: they have a huge part in the lore.  The eastern continent is coming soon, as far as I know, so another eastern-based class makes sense to help immerse us in the new continent.  As a thoroughly Western guy, I am excited to be able to experience Eastern culture in this game,  It will greatly enrich the experience.  As for the class being female, well, hopefully she is integral for the lore of the story concerning the eastern continent.  I'm not sure what "twin" means, as it seems one is PC, and one is Mobile (maybe?) Hopefully the classes' storylines involve each other, and it's not just some: Hey, they're twins, but you wouldn't know because you never see the other, unless you have two seperate accounts, but even then, they won't be together.  And, actually, they aren't at all together or alike, as one is devoted to gods, and the other is not.  Seems to be a dividing point for them.  Hopefully the awakening quest is a face-off between them.  Could be cool!

I do look forward to what is coming.

And hopefully, by next year, a dwarven colony will have been discovered in the eastern lands, and we can all have our dwarven avatars clink tankards together in a warm, firelit pub, as the snow falls softly outside.

Cheers!