Regardless, however, I see a Russian defeat by 1917 due to revolution & a massive summer offensive , with the Germans at the gates of Petrograd HOWEVER;
This doesn't mean that Germany wins. The army would be heavily fatigued/battered as more static warfare would ensue in the East as the Germans only sustain themselves on the active offensive. If the UK was to join, the war would grind down into a stalemate as the Ottomans collapse, Austria divides through issues with the Hungarian Diet, and Germany is desperate to end the war. The war would end in late 1917 with an altered Russian April-crisis, with a peace that is disadvantageous to the Kaiser (which could probably result in his abdication but idk)
I don't truly see any other scenario, and if anyone else has separate proposals I'd love to talk about it.
German leaders of the time would have to reach similar conclusions to yours on the course of events, or perhaps worse conclusions, since they seemed to overestimate Russian strength OTL. Would they consider a 3 year war of fatigue worth it, with Germany's advanced economy how sure are they Germany wouldn't fatigue first..
On the other hand is France first really worth it either, even if a victory in the west, France is still around, sort of a 1871 situation, Lots of German forces haver been pulled east after 6 weeks, so would settle out into a stalemate condition in the west, the war on Russia would still take a long time, probably until 1917 still.
At least with east first its easier to achieve a compromise peace and the blockade would be looser (Belgium neutral and Britain unable to take as many heavy handed measures on neutral rights with more German sympathy without invading Belgium).
@Rian or somebody pointed out that nobody considered diplomatic/military/war aims as one package in 1914, just tried to win the battles and let the rest settle.
It just seems that war is a crap deal for Germany in 1914 even without hind sight. Poor leadership is present.
In 1914.
1) Germany were in Germany, or in German lead Austria or in Russia where much of the aristocracy had German ties so there is no need to liberate anyone.
2) German economy has a lead in the high tech of the time, Chemicals, Electronics.
3) The German colonies were just starting to get a favorable return in Togo, Samoa, and diamonds had just been discovered in South West Africa. All this would be lost in any war.
It just seems to be best to settle for some British lead peace conference over Serbia, or failing that, do east first which is a lot easier to stop and make a peace whenever.