Gods lineages

I think the gods lineages will play a bigger role then they already do. I feel like once ki song or Anvil (or both) dies there lineage will be up for grabs and maybe Effie will be the new beast god or Cassie the new heart god etc, this theory has holes in it for sure because I don’t know what a character like Kai could have for a power up that would suit him except Ariel but still.