thhat is one possibility another is the economy collapses , it really is in a bad way now with 18% offiicial interest rates and still inflation (Nabiullina admitted) not under control
another is the people start to rise up
another is some provinces try to breakaway from russia
a fifth is that putin goes too far and China deserts him and the west put boots on the ground
there are other possibilities too
mostly longshots ....but the chance of one them is much higher than the chance of any individual one happening