Sophie Turner "wants" her to die, I remember a quote from her "What's the point of being in Game of Thrones if you don't get a spectacular death"?
But someone has to survive somehow... who, even without the details, can be given as marked for certain death one way or the other?
Melisandre and Varys will die, see last episode... they didn't bother to put that line for nothing.
Cersei is toast, can't see her surviving, and neither Jaimie probably.
Dany will die if she will lose it and become a villain.
Littlefinger... I hardly see him making out alive of all his scheming.
Theon may die heroically as a final act of redemption.
Sandor Clegane also may go out in a blaze of glory, I hope for him not literaly.
About the surviving ones... I'd say Tyrion, Arya and Bran might, and of course Hot Pie