Shoigu even talked about creating 3~5 new big Russian Cities in the eastern part of their nation. If I'm not mistaken Shoigu was even talking about moving the Russia capital to Siberia. So the Russia people would move eastwards as their will be many new chances of a better life.
The overall Russian population is declining
The Siberian population has been declining even faster as people move to European Russia
Where are the people going to come from?
And where are the jobs?