"As Zekhan and Talanji work to save Bwonsamdi, their journey will be a key turning point in bolstering the Horde against the coming darkness and finding themselves along the way. Failure to save their allies and the trickster god will surely doom them—but through success, they may rediscover what makes the Horde strong."
This small part, tells me that Bwonsamdi is going to survive, as it basically says: "If he dies is DOOM!!!!" and we can't have that, though the fact that Bwonsamdi realm is a dungeon makes me wonder if:
A) She tries again
B) Cut the powers of Bwonsamdi, to a point