User blog comment:LegerPrime/God Serena: Alive or Dead?/@comment-24403746-20160613213339

August so far revealed that he has a strong will to protect his comrades. Therefor I highly doubt he will desecrate Serena's body with necromancy, if ya ask me it's more likely he either stored Serena's power since they came from lacrimas OR he is keeping Serena barely alive in some pocketlike dimension (remember we have those: Requip and Equip).