I thought she was Emma at first glance too.

But on second thought, I lean more on original maid or at least not Emma:

• The color of her hair and eyes.
• Her hair style: her bang isn't this short and all her hair's wrap up high in braid but never clearly in bun.
• Her glasses
• Her dress collar is a bit different than her maid uniform with frilled apron. It's similar to the plain apron one though.