Interesting, how do you think the Germans would have handled the Russian situation? Would they have forced a pro German goverment into play? Would World War 2 then be between Germany+Russia+Italy+Austria Against Britain+France+US + Japan?
Well as I said, it's very difficult to predict how things could have worked out on the Eastern front. However, if the Germans had been able to win the war in 1914, in all likelihood, Russia would have been able to negotiate a not too onerous peace. Perhaps Russia would have had to make some minor territorial concessions (minor from their point of view) and they would have been forced to accept the Austrian domination of the Balkans, but beyond that the Central Powers did not have any reason to press the Russians any further, and they had no interest in regime change in Russia. After all, Russia's government was actually quite friendly towards Germany's (which is not that surprising considering that Nicholas was William's cousin) and many members of Russia's government had actually strongly advocated for a closer relationship with monarchist Germany instead of revolutionary France. Russia's alliance with France at the eve of the war was driven mostly by its rivalry with Austria and the lobbying populist Pan-Slavs, whom the ruling family did not regard entirely sympathetically.
Of course, then the question comes whether the monarchy would have survived in any case. This is were things are murkiest. Certainly, without the war and the hardships it brought on, a strong catalyst for revolution would have been removed. Nevertheless, Russia's internal situation had been precarious at the utmost since the Russo-Japanese War, and it's certainly plausible that the country could have either broken up or have had its government removed even in the absence of exogenous driving forces. There is just no way to know.
So, regarding your question about whether WWII might have been between the Central Powers+Russia on one side vs. Britain, France, and Japan, that is certainly possible given Russia's enmity with Britain (since they probably would still have wanted the Straits) and their wish to settle scores with Japan. It's hard to see Japan on the side of Britain though (and much less the US, and it's hard to see why the US would have joined such a conflict in the first place).
That's the problem with alternate history when taken to such a level, there are so many variables that it's pretty much impossible to try to speculate beyond one event.
"Be polite; write diplomatically; even in a declaration of war one observes the rules of politeness." Otto von Bismarck