As long as they pay off the other four sects and give up some benefits, such as the control over the rank 3 realms for harvesting, they will be able to maintain control over their rank 4 realm, and their status as a sect in this part of the world will be maintained.
With enough time, the Blood Skull will be able to produce more fifth mortal coil cultivators. After all, they have many talented golden core cultivators.
But if they can't keep the other sects from attacking them or if they also lose all their golden core cultivators, then the fate of the Blood Skull sect will be set.
This requirement to fall is clear to him. But he doesn't see how it will happen since the sect already has many cultivators at the sixth mortal coil.
He just doesn't see how the sect will lose everyone at the sixth, fifth, and fourth mortal coils. It is not that he doesn't think thay it is possible. But he believes thay is is going to be difficult for it to happen.
