Lastly, will Arya stay at The Wall when she arrives there? Her half brother, Jon Snow (Kit Harington), is stationed there, so she has a friend and ally. But Jon rides North of The Wall with the other men, and may not be present when she arrives, which would be unfortunate. It would be nice if he can return, at least before Arya takes the oath and has to spend all her days defending the Kingdom in the cold fort alongside her bastard brother. On the other hand, perhaps Arya is suited to such a life. She is a girl, but she shows passion and aptitude for combat, as well as a desire to be treated like on of the boys. This is her chance. Assuming they don't turn her out as soon as they discover she is not male, which is bound to happen eventually.
Game of Thrones will return for season two, likely in the spring of 2012.