WI: Russia withdraws from WWI two years earlier

If the events in the Russian Empire would have speed up and the fall of the Romanovs and the Bolshevik revolution would have been advanced to 1915, with the following withdrawal from WWI, which kind of impact this would have for the development of the WWI events?
 
Not sure how a Bolshevik revolution happens in 1915, but perhaps the Germans 1915 offensive goes better (perhaps a POD is something like Wikings Conrad waits time line, with the result of Austrians do better in 1914, experience less losses in the Carpathians over the Winter, and so are able to contribute more to a crushing of the Russian army worse than OTL in 1915 (perhaps the better Austrian performance means Italy doesn't come in during 1915 either, meaning even more Austrian reinforcements).

The Germans with some Bismarckian level diplomacy propose very reasonable terms for the Russians to get out of the war.

1) back to pre 1914 boundaries, except the Ottomans get Kars and Batum back.
2) Russians agree to Austrians having primary influence in the Balkans.
3) Russians agree to withdraw from northern Persia, leave supplies in place for the Ottomans to march in.
4) Germany/Austria allowed to purchase grain and oil at set prices.
5) Limited transit rights for war materials and individuals across Russia to Turkey, Persia, Afghanistan, China.

With such a situation the Germans would be able to reinforce heavily the western front in 1916. I would expect a series of Verdun like battles to break the French. Hard to imagine the Germans not winning.
 
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