Exo debuted 2012
BTS debuted 2013
Red Velvet debuted 2014
Twice and Seventeen debuted 2015
Blackpink and NCT debuted 2016
All these groups are doing just as well or better than the trendy, new groups. Usually at their group ages with kpop, they would either be disbanded (or lost most members) or obviously replaced by the new generation. Not only are these groups still popular, but some of them still haven't peaked. Only one group has lost members so far too. Is this a 3rd gen fluke or will 4th gen have the same longevity as popular 3rd gen groups? Who do you think these groups will be?
Honorable mentions for other active 3rd gen: Oh My Girl, BTOB, Got7, Mamamoo, Viviz (Gfriend), Astro, Winner, iKon, WJSN 