Will 4th gen girl groups be able to achieve longevity with the incredible heights some of them have in the debut eras?

How will these current 4th gen girl groups fare in the long run?

Some have popular members, some are more famous as a group, some come from survival show backgrounds. Will these groups be able to achieve longevity or will it all be a flash in the pan?

Only time will tell. I reckon for girl groups, those with multiple members with great gp reception will last long.

aespa, stayc, NJs, Leeserafim, Ive(but this tricky, sometimes i have a feeing they might have members crisis ala pcd)

If Starship manage to make Ive consistent the same way they managed Sistar to get #1s on kcharts from beginning to end of their careers, yeah. Ive have potential to be much more successful since they have Wonyoung, other 4 potential it girls and the fandom + Japan something Sistar never had.

some of these girl groups haven't live up to their hype some are one hit wonders

2nd gen fandoms asked the same question about 3rd gen too and look what happened lol

as long as they have big companies backing them, their careers will last as long as their contracts.