Quick theory, with HYBE and SM potential merger going on, K-Pop has essentially peaked with the general public over the last couple of years. It'll still be relevant and a more consistent niche globally but not say big as BTS. K-Pop is not going anywhere soon but I doubt it'll get further global traction.
One thing I didn't realise, a lot of Army are only interested in BTS and not K-pop in general.
I have noticed some popular groups are using less symbolism or satanic vibes and focusing on what they're good at, bold colours with synchronised choreography, which is always a good sign!
As always trends come and go, another genre or group (not Korean) could be the next thing and the parasites will make sure they promote whatever is on the agenda to the youth to maintain their success.