The real foe of the 4th Generation is not each other - it is IU

Quote from desdesdes

IVE might have a chance to fend her off for a time being, since IVE are having another dark being, and now showing some of her power in grasping the K-o-r-e-a-n-s. Also NewJeans could have that chance too, since they are supported by the power of their brothers.

Yes, it is a battle between these dark powers for the control of the world's soul.