[nik-]

I could buy the theory that it's not Arya because of the way she's gallivanting around and "walking like a rich person". I could buy that it's Jaqen because he's actually testing the Waif because she obviously hasn't let go of a personal grudge against Arya, which is very un faceless men like.

But I think it's a little silly. Arya is unkillable really because investing that much time in a character who ended up having zero impact in the world as a whole would just be such a hilarious misstep that I couldn't see them doing it.

That whole scene was a little odd. I really hope it ends up just being face value. The Waif attacked Arya, now she needs to survive and probably fight the Waif. No need for all the "it wasn't really Arya" shenanigans IMO.