Influential? That war surely feels like a motivation for secular ideas in Germany, but the actual outcome in Augsburg was that rulers were free to pick the confession for their realm, hardly more than a confirmation of what had been happening before. A less bloody path to that lowest form of peaceful coexistence between Lutherans and Catholics could not have been very different. Secular ideas did not really become a reality before Napoleon shook things up. Other than that, what did the war change, outside of a population reset? I'd rather rate it surprisingly free of consequence considering the amount of destruction.