DanteSC3
[14] Master
They could always give her Spear and Combat Bracers. But the way she uses Large Sword mostly telekinetically is pretty unique. Maybe Spear and Large Sword?2B makes sense for a lot of reasons, and personally as a fan of Nier I'd like to see it. But personal biases aside I think there's a problem, her weapons/moveset are largely longsword/greatsword based, and so kinda redundant.
I have no doubt that they'd be able to differentiate her moveset from the other sword users in the game, but I think it makes more sense from their point of view to add a guest character that uses weapons we haven't seen a hundred times before, one that is more different from Geralt.