If you're talking about Arya, she isn't dead. If they were going to kill her off, they would have showed it. They wouldn't have that final scene of her walking down the road. There was an interesting theory that Gendry was going to find her.
Plus, the next episode is called 'No One'. I think that will have some significance.
Nope, not talking about Ayra, instead the one who was left hanging (Ian McShane) at the end of the episode which really dissapointed me.
Is Sansa's desperation leading her to send a raven to Littlefinger to recruit House Arryn? My guess is yes and it's NOT a good idea.
I'd say it's yet to be revealed if it's a good idea or not.