My guesses - Gomez is killed in the shootout, while Hank is wounded and captured. On the Nazi side, either Todd or uncle Jack dies. My guess is Jack dies. Jesse escapes.
The Nazi guys are going to execute Hank, but Walt intervenes and convinces them to hold Hank hostage; in return Walt will cook for them (Todd dead) or teach Todd the finer points of cooking that he obviously missed the first time (if he's alive). Neither side has any intention of living up to the bargain.
Hank and Walt have time to discuss the situation and the fact that Walt saved Hank's life. Think of it as a final clearing of the air. Walt gasses the gang during the cook (remember they don't like the gas masks) and makes his escape with Hank. Todd/Jack manages to kill a slow moving Hank during the escape.
Skyler and Marie have a confrontation over their missing husbands...maybe starting with Marie gloating over the arrest. It becomes physical and Flynn joins in, knocking Marie out with one of his braces. Skylar flees with family. When Marie finds out Hank is dead, she trashes Walt's house.
Walt is concerned about Jesse, due both to family safety and Jesse now knowing where the money is buried. Neither is real anxious to return to the scene of the shootout. Walt kidnaps Brock to regain control over Jesse (remember the odd way Walt and Brock looked at each other). This ties into iodeac's report "Walt is yelling to someone over a cell phone "Toe the line or you'll wind up like {Redacted}" . Also, Walt has something "extremely important in his possession, something more valuable than 1,000 gallons of methylamine, something that a certain someone desperately wants back". Jesse is forced into becoming Lydia's cook, in exchange Brock is freed. Walt thus makes peace with the gang and retrieves his money.
Walt finds his family and they move to New Hampshire ("Live free or die") with the aid of Saul's fixer. Walt fakes his own death before leaving.
Walt returns to NM to avenge Hank's death and free Jesse. Lydia and remaining gang members are killed (Yeah, science). Walt and Jesse, two broken and worn out men, have a final conversation. They settle their differences as much as they can, then Walt, nearing the end of his battle with cancer, commits suicide via ricin
