I don’t think it was decided in 1914, I’ve read articles by historians who think the Entente could still have lost as late as 1918.
Would WW1 as we know it have happened at all without the Russian mobilization? If Russia chooses not to back up Serbia (as some in Germany hoped they would not do on 'anti-regicide' grounds, which in hindsight would have been wise), then a continental war is probably averted entirely. Austria-Hungary is to some degree strengthened in the Balkans, but there is no other change to the European balance of power.
Several of the countries you list, particularly Czechoslovakia and Armenia, did not exist at the time of the outbreak of WW1. I'm not sure what war you're discussing, but it seems like you need a significantly broader alternate history to get the sides that you want.
I was looking at the World War I Wikipedia page, and assumed some of those were attempting to breakaway during the war.
