All it will take is one big event with AOC taking the wrong path—and she will be done. Its coming. Like—say, a new 9-11 attack that kills thousands and she blames Trump for the ISIS attack. I believe she is a flash in the pan—like a comet, she will blaze across the sky and then burn out, and be forgotten.
If she's lucky, but I think she is more likely to be taking a trip to Fort Marcy Park in the near future.