1) I mentioned Austria and their position is worse of all. Sure, they will have some new artillery but they also face many rivals who are all expanding as well. They have Serbia and Romania to the south and Italy to the west to deal with even before turning to a greatly expanded Russia. The planned Austrian expansion is barely enough to deal with Serbia, let alone their many other rivals
And thats nothing they had not to deal with OTL. Instead they army will be much better prepared for it and hopefully not led by an idiot. And through I dont pretend that im familiar with the extent of planned austrian and serbian military reform I have my doubts that the Austrian army facing the serbians alone wouldnt win. Serbia acquired macedonia that was a pretty poor territory and not too densly populated either. Austria had much greater untapped potental than that, economically, population wise and in railways.
2) If Germany abandons the Schlieffen plan? For what? Some batshit nonsense of East First? Seriously, the Germans hate that idea no matter how many fans it has on this board. The Germans are right- East first would result in the Russians declining battle until they are ready to deal the knockout blow to Austria and France quickly over runs the Rhinelan
OTL Schlieffen plan was a huge gamble. To try it later with a much faster Russian mobilization is on the batshit crazy side. They wont try it because they will see it as impossible not because they would not like to avoid a 2 front war. And on regards of the East first idea: there has been long threads of discussion on this forume about it - lets say yours is just an opinion of the many and not the most supported one. Whats more Germany had numerous Ostaufmarsch plans in the years before 1914 - up to 1913 and they may resume them after Schlieffen plan becomes obsolote. Not to mention that East first doesnt leave the Rhineland and western Germany undefended. The Franco-German border was on both sides very well fortified. And Russia becoming suddenly competent and abandoning its aggressive warplans towards Germany is unlikely. Not to mention that OTL the quality of the russian army proved to be severly overestimated by all sides.
3) Great Britain isn't abandoning France for Germany. If Britain tried to move towards Germany, she is likely to see the Russians and the Germans kiss and make up and face a united continent. How does Britain help Germany? The Germans are looking at 200 French and Russian divisions on their border in three weeks, do you think they give a rat's ass about Britain's six? The last thing the British want is for the victorious Franco-Russian coalition to turn on Britain
there's a reason the British reject the idea of a German alliance in 1902. Nothing has changed to make the idea any better. That Germany is likely to lose a continental war only makes the idea worse
The germans and russian cant kiss for the simple reason they didnt earlier: Russia is dependent on french money, and France wont ally Germany because of A-L. That simple fact makes a continental block opposing Brittain impossible.
I didnt propose Brittain joining Germany but Brittain remaining neutral. And in the course of the war the british brought a bit more to the table than 6 divisions, including the blocade I already mentioned.
But back to diplomacy: Russian-british relations started to sour OTL before WWI and Germany and Brittain were on the way to settle some of their differences (Baghdad railway). And I dont think an agreement on the fleets by 1920 is out of the question. Also, according to your logic Brittain should have made its peace/allied with both Napoleon and the Nazi's. History doesnt seem to agree with you. As I see it Brittain doesnt want a hegemon on the continent - be it called Germany, France or Russia.
4) Japan? What on Earth is Japan going to do for Germany? If Japan attacks, doubtful, the Russians will simply ignore them until they defeat Germany. After Berlin is occupied and the German fleet turned over, defeating Japan would be icing on the cake
I have thrown Japan in more as a question and stated it may join either side for easy pickings. Please read my comments before trying to answer them.
Diplomatically, the interesting thing would have been Franz Ferdinand. He always advocated a peaceful policy and reconciliation with Russia. In the 1890s, he cahmpioned Beck's proposal to split the Balkans. Roughly, this would give Russia Romania, Bulgaria and the straits while Austria got Serbia, Montenegro and Albania. The problem is that by 1914 such a simple division is no longer possible
And how is this interesting if you yourself acknowledge that partitioning the Balkans at that point would be impossible?