Yeah, the only think I missed with my wild prediction was the fact that Ayra plain and simply "got done" becasue of her own error, rather then it was her plan all along.
Come on Ayra, don't let the side down.
I hope from now one she'll feature more, but to be honest, I won't hold my breath. We probably wont see her again until she appears suddenly in Westeros.
Her storyline is following the classic Japanese hero story:
Disaster befalls a young royal (or a young orphan, who turns out to be royal), who then goes on a dangerous journey to become strong in the name of vengeance).
If Mr/ Author doesn't get an itch to kill another main character in the story and Arya survives another few episodes, then according to the classical shape of the narrative she's following, she's now powerful enough to seek her revenge, but in attampting to do so she'll learn more about the world then she new as a kid, and develops a new focus, typically, one involving saving the world (or saving "everyone") Rather then continuing on her own, now selfish seeming goals.
I'm hoping she's going to play a big part in the "big" war; the Ice dudes Vs Westeros Vs Dragon Queen.