I think this season will end with the downfall of Gus. Next season will either be Walt trying to escape the cartel or him trying to adjust to life out of the drug world while trying to keep Hank off his trail.
I can't see Walt teaming with Hank. This series is about Walt breaking bad. It's about his spiral down into the drug world and how it changes it. A whole season can't be spent on Walt finding redemption by helping Hank. The only way it works is if Walt leads Hank down a dark path to help keep Walt safe from his criminal activities.
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