I don't see how Jimmy survives this season. He has no power base or muscle other than Richard. And with what happened in yesterday's episode I can see him cracking up completely. To me he has no reason to make it until next season. His story arc seems near its end. If Nucky wins there is no place for Jimmy.

"When the snows fall and the white winds blow, the lone wolf dies but the pack survives."
Winter is Coming

Now this is the Law of the Jungle—as old and as true as the sky; And the wolf that shall keep it may prosper, but the wolf that shall break it must die.
As the creeper that girdles the tree-trunk, the Law runneth forward and back; For the strength of the Pack is the Wolf, and the strength of the Wolf is the Pack.