Gleefuly rubs hands in Russian - "Now Russia can into space" ...
With Putin's knowledge, Russia wins the Manchurian War (@Zyobot cruely timed the ISOT to the tail end of the war). This does not take much - by mid year Japan will be running on financial fumes, hence "not making further mistakes" and "waiting Japan out", with no 1905 Revolution (Putin knows what NOT to do, what to do*, and whom to arrest/kill) - are enough. Kicking Japan out of Korea will take some effort, though.
Trotski, Lenin, Stalin, Zinoviev, Kirov, Molotov etc. all are dead very quickly. Childhood heroes or not, they are mad dogs and a threat to him.
Changes from 1905 onward are so huge that simply impossible to predict.
Like there could be a World War in 1913, resulting from the 1st Balkan War - and a World War which Russia would win - if Putin wants this to happen.
But will he?
I'm not Putin so I can't say
To avoid unrest he will give some measure of democracy. Maybe allow limited representation like in the UK?
Russia will get the Bomb in the (late) 1930s (many scientific discoveries have to be made for that to happen).
Vlad will manage the economy better - he will boost the GDP growth rate (already high) even further and Russia will equal/surpass Germany inside a decade. Not a high bar, considering that in OTL the two were within 10% of one another in size (but Russia had some 2,5 times the population).
Pretty much results in a "Russian Century".
Like I said - the sky is the limit
BTW - Putin is a Leningrad boy - there will be no moving of the capital to Moscow.
* - like not firing at Opon's delegation, but maybe walking out and personaly receiving the petition instead
I also see the Pale of Settlement being abolished as soon as reasonably possible. For a Russian leader, Putin is actually pretty friendly to the Jews. Though he might also support Zionism as a way of getting the more Russophobic elements among Russian Jewry to emigrate. Of course, having them emigrate to the US would also be another option.