Russia will not change any time soon (that's several generations).
We cannot hope for any coup, revolution or rapid evolution. All this may happen, but it will not change the essence of Russia. Russia will remain what it is: aggressive, violent, barbaric and evil.
The Russians are not afraid of a long war.
After all, permanent war is the only thing they think they can do. They feel good in it and have been brought up in it for generations.