Russia will not break up into several states. The collapse of the state is possible only if this process is supported from the outside by other states.
And who now supports the possible collapse of Russia? Nobody supports....
For example, when Moldova withdrew from the USSR, it was supported by friendly Romania. Azerbaijan was supported by Turkey. The Baltics were supported by friendly European countries (for example, Germany). Even Russia was supported by the USA.
The collapse of the USSR was approved by the entire world community, in fact, all this took place under the patronage of Western countries.
In addition, there were high hopes for assistance in building prosperous national capitalist states (the new Marshall Plan). The Soviet people had big illusions.
And who will help the new states now? You see what is happening in the world....
Russia, in any case, will remain as a single state.
With which I absolutely agree - with the fact that there will be no uncontrollable from outside, the collapse of Russia.
It will be manageably divided into several segments. The Kuriles will go to Japan to restore historical justice. Trans-Urals and the Far East of Russia - either everything will become Chinese, or it will become partly Chinese, and partly independent republics under the control of China. Most likely it will be in replacement of the "untouchability" of Taiwan.
The central republics, including Muscovy, will go under external control, plus they will become donors to the program for paying reparations to the peoples who suffered from the USSR and the Russian Federation. And they will be hostages of their past crimes for decades.
The main question is not the peoples of the Russian Federation, they have never been "handed over" anything in this life ... The question of control of nuclear weapons! Because Russia today is the basis of international terrorism, and supports and finances other terrorist regimes and groups, if the component leaks into these hands. But I think this issue is also not very difficult to solve, through total control, or manipulation of local "kings"