Disagree on the last paragraph. Wille the Deuce was practically begging for a war, IMO a legacy war like Shrubsie's second Iraq war, to cement his position among the legends of imperial European rule.
When push came to shove he got cold feet and tried to back out in some last ditch telegraphs pleading his cousin Nikkie to help him out of the mess. Like most all bullies he was a truly gutless cocksucker. Germany got what she deserved. I don't believe Franz-Joseph would have moved to a military solution without Germany's backing.