Given the catastrophic failures of marxism-leninism and other variants of marxism during the 20th century, what possible outcome can there be for marx later on ? Will he be remembered vaguely as this niche hegelian materialist philosopher or will the coming anti-imperialist marxist-maoist revolution usher in a new era of prosperity under his guidings ?

If you're inclined to believe in the former, what part of marxism can't be reconciled with political practice ?
If you believe in socialism, how do you think a new iteration of marxism or socialism as a whole could hold up in the near future ?

>hard mode: you need to at least know the basics of marxism, no "human nature is greedy" or "communism is when sharing"