From 2nd gen, Snsd is one of few groups that have a legacy as new groups are always covering their songs and the members are still having success with their solo careers. The same can’t be said for 2NE1, most members are no longer relevant to the public and their songs are rarely covered or mentioned, even by their sister group Blackpink. Even then, most new Kpop fans, especially Western fans that know Kpop through Bts/Bp don’t acknowledge 2nd gen at all.
Which 3rd gen groups you see having a legacy and which won’t? Bts and Blackpink already has a legacy as their songs are regularly covered and Jennie/Taehyung are always mentioned as influence to newer idols. What about Twice, Red Velvet, Exo, Gfriend, Monsta X… will they also be relevant for the next generations?