Neutral Ottoman Empire would free millions men to both frontlines. Bulgaria and Greece might remain neutral but Italy probably still enters to the war. CPs would are defeated perhaps already in 1916 so Russia would avoid OTL revolutions. Treaty of Versailles would be different since Russia would have something saying and on other hand Britain would be more worried about Russia since it is not now in civil war. So France would be pressure to give more lenient altough still harsh terms. Austria-Hungary would be still divided altough Habsburgs might somehow survive. German monarchy would too survive altough Wilhelm II is probably enforced to abdicate.
Future of Russia is intresting. Altough Russia survived as victor it doesn't mean that Nicholas II would be more popular. He would now face demands of returning soldiers and old problems would still continue. Bolsheviks not take power and there is not civil war but Russian future is not still easy at least not yet during remaining 1910's nor early 1920's.
Ottoman Empire might now survive assuming that government manage to handle problems. I don't think that Entente is going to divide the empire altough they would increase their influence but it would be more like they did over Persia, not outright conquest. They are now really exhausted over the war altough it lasted shorter time. There probably not be Armenian or other genocides but many minorities still wouldn't have fun times.
Yes that's how I mainly see it, Versailles would be interesting given Britain might not want to punish Germany too bad to counter Russia and France but Germany would still get loss of territory and reparations thrown at them but nothing like OTL, so they do lose the Rhur and Alsace-Lorraine to France while giving away their parts of Lithuania and some Polish majority areas in Silesia and Prussia towards the Russian empire, loss of colonies still applies as well as somewhat heavy reparations. Russia and France probably make a permanent defensive pact in case Germany tries a second round.
Austria Hungary is a bit complicated because if the war ended earlier they might've not been desintegrating and fully collapse, so while Hungary might left the monarchy and Bosnia be given away to Serbia, Croatia, Bohemia, Slovakia would still remain with the Habsburgs and the realm could become the federation Franz Ferdinand imagined.
Russia will have interesting times for sure, they barely won by the skin of their teeth and there will be severe labor unrest still, not to mention the growing demands of a middle class associated with industrial and commercial growth, Nicholas II wouldn't be liked by anyone and it would simply be best if he renounced to someone else even if it meant a regency but Russia will be definitely looking inwards and resolving their own issues like dealing with "The Polish Question" or dealing with army reforms.
Ottomans would have a good time overall as everyone who wanted to use them for their own gains is now fully exhausted and they can focus on themselves, especially once they find oil in Iraq and Arabia, which not only would be a perfect money maker to modernize their country but also give plenty of jobs for Arabs and Turks alike even if they have to give 30% of profits to some Western company who's helping them extract it, it's a great victory still. The minorities in the empire will go through turbulent times but I think that eventually things will get better once the specter of war passes and the country continues modernizing, since they were used as escape goats for military and political failures and that's unlikely to happen here but things would still be violent and tense enough to the point many of them would migrate towards the Americas, which would also have the interesting diplomatic effect of having the Ottomans have major relations with the Latin American countries like OTL Arab countries have with Brazil and Argentina.
