I'll not mention specific groups, but I think especially smaller groups will vanish because of the very strong competition at the moment. The music scene in South Korea is relentless regarding groups that are not 'trendy' and successful enough. In Western music scenes you can be successful without any support of the mainstream audience, while promoting yourselves. That will not work in South Korea. It is sad but true that Dreamcatcher probably wouldn't be there anymore without the support of their fans in the West.