The old approach was to simply develop the Eurasian Union, with key players on-side and coaxing more non-committal members in. The prob with the Eurasian Union is that its vulnerable to outside forces ie crooked rats like Uncle Sham. Just look at Belarus, Kazakstan, Armenia etc.
The new approach, as mentioned by Putin is more about "de Communisation" ie looking at what was Russia before some of the idiocies of the USSR. So we're now seeing parts of the former Ukraine looking to rejoin Russia. Likewise with Belarus after Lukashenko.
With Kazakstan, Krushchev had the moronic idea of giving away a chunk of Russian land to the Kazak SSR. And post Communism, ethnic Russians fled Kazakstan. Furthermore, back in Imperial Russia, Kazakstan was part of Russia itself.
Evidently demonic forces from Washington are looking to do a "Pukraine" with Kazakstan at some point.
To me, the solution is to absorb atleast a chunk of the current Kazakstan into Russia proper. And the rest of it could be headed up by a no-nonsense character.
Thats not about "empire building". Its simply looking at the identity of Kazakstan, what is best for it, preventing bloodshed and enhancing prosperity and a good quality of life. Because the Devil aka Uncle Sham will promise one thing, but only bring misery and lies.
Hopefully Russia can be very proactive with all this. Esp given that it can now weather any sanctions storms created by Uncle Sham. A Russia with much of the Ukraine, Belarus and the better parts of Kazakstan could be pretty powerful AND unified on the World stage. Other former Soviet areas could very likely then be re-attracted by the softest of power plays.