Remember when Twice first came out and became super popular? At that time, many new groups debuted with cute concepts. Then, Blackpink changed things up by making the 'girl crush' concept popular, and that's been a big trend for a while.
I think something similar will happen with Tblngg/BabyMonster. Right now, Newjeans is very influential in K-pop, even affecting boy groups. But like Twice, I think this trend will only last for a short time. Kpop fans really like the 'girl crush' style with glamorous and untouchable image, which is why Blackpink is still so popular until now compared to their peers. People enjoy watching and living through them because they can't be like that irl.
Newjeans, on the other hand, has a similar vibe to Twice, which is more like the sweet, girl-next-door type. Many Kpop fans don't seem to like that style for the long term. It only popular at one point and gone shortly after that. So, yeah, it seems like history will repeat itself.
