I am inclined to think that before the end of 2026 – so inside two years from now:

Russia will completely smash Ukranian infrastructure. Ukrainians will be reduced to almost permanently living in underground bunkers.

North Korea will join with Russia against Ukraine. 

Nuclear warheads will be readied and one of two may be selectively detonated.

Countries around Ukraine, who left the USSR during the time of Micael Gorbachev, will be on notice that Vladimir Putin is after    reunification