Given the fact that he stayed in the bullpen for the entirety of the NLCS, it became pretty clear that the Dodgers don't have a plan for Clayton Kershaw, and that he might be on the roster as a formality more than anything.
If a rookie pitched the way Kershaw did in Game 3 of the NLDS, when he gave up five runs (four earned) in just two innings, he'd wouldn't have been on the NLCS roster. But Kershaw is Kershaw, and he's retiring at the end of this season, so no one's begrudging his rostered status.