Game Of Thrones Season 6: 10 Big Questions We're Asking After 'The Broken Man'
5. When Will She Make It Back To Westeros?
Regardless of whether or not Arya manages to kill the Waif, there's still the matter of what she'll do next, because either way she'll need to get away from Braavos.
The logical conclusion is that she does indeed head back to Westeros, but that itself probably won't be all that straightforward. Given the way Arya's storyline has gone, I can imagine them waiting until the season finale before having her head back over to Westeros. And that's provided she can indeed kill or escape the Waif, free herself from Jaqen as well, and make it back to Westeros without any other misery befalling her.