The Russian government is to give priority to Siberia and the Far East as it puts modernisation on fast-forward, insists Dmitry Medvedev.
One estimate is half a million new jobs stemming from improvements to the Baikal-Amur Mainline link amid hopes of foreign investment.
Special train - the Eurasian Star - will reopen exotic and historic trail linking China, Mogolia and Russia.
33 hour journey between the capitals could be in place by 2020.
Possible route could see 400km/hour bullet train pass through heart of Siberia and Altai region with stops in major cities.
Travel for the first time by train to Russia's diamond capital, the coldest city in the world!
Rare historic pictures show Russia's last tsar as the first builder of the Trans-Siberian Railway 125 years ago this month.