Davos and Lyanna need to live, he needs a friend to fill the gap left by Shireen and she needs someone to say "how man, Lyanna, wind your neck in a bit love". They'd be besties forever.
Jamie with kill Cersei and Brienne will face off against Jamie over something or other where one will have to kill the other or else both will die, his last act of redemption will be to deliberately lose so that she can live.
I also want her to make beautiful giant babies with Tormund.
I want Tyrion to live but I don't think he will. My money is on either Arya or Jon killing him.
Danaerys seems like she's a goner and interviews seem to hint at it but I don't think she will be. I think she and Jon will end up joint regents but not of the Iron Throne, I think they'll overhaul it and create a new kindgom.
Sansa for warden of the North.
Arya and Bran are going to head off into the sunset together, he wanted to be a knight and she wanted to be an adventurer so they'll go off to do that.
Samwell commander of the Nights Watch and he'll allow women/wives so that he can marry Gilly and have her with him.
The Hound and The Mountain is going to come down to Clegane-Bowl, two enter and only one survives. Hopefully Sandor and he can retire to a peaceful farm somewhere.
None of this will happen though, they're all going to die. I'm sure I read somewhere in an interview with George RR Martin that he envisions the final scene of the book will be a desolate wasteland of gravestones in the mist.