I'm afraid when Putin is gone (he's not immortal), our "elites" will fall to their knees before the West, begging to get their seized assets back. And they will bring offerings in exchange for that: unilateral demilitarization and nuclear disarmament.
Also, I predict that Russia may be allowed to sell its oil and gas again, but the proceeds will not go to Russia: they will be directed towards rebuilding Ukraine.
Russia will only prosper when Putin is gone, which is at least 10 years from now.