Walt: Dead before he gets to jail
Jesse: rescued in a DEA raid, ends in jail
Skylar: lives, not in jail, keeps her job as the taxi dispatcher, doesn't get the money
Walt Jr: eats some corn flakes
Marie: I doubt we even see her again, if so it will be briefly at the end -- lives.
Todd: dead in a DEA raid
Lydia: lives, (turns state witness).
Jack: dead in a DEA raid
Gretchen + Elliot: poisoned. Walt is specifically coming back for these two.
I think Walt has resigned himself. He's given up on his family, he knows he can't fight the entire federal apparatus. He knows his time is short. I think instead he'll use that apparatus to kill the Nazis, Lydia, and Jesse (since blue meth is back, Walt would guess that Jesse is alive). I think all he's going to use that gun for is to confront Gretchen and Elliot at their home, poison them, and then go die in a ditch somewhere.