During the 1480s DR, with the event known as the Sundering, the Overgod Ao separated the twin worlds Abeir and Toril once again and rewrote the Tablets of Fate (an artifact which contains the name of every deity of the pantheon and their portfolio). During that time, many deities of Toril who were considered dead or lost managed to return to life, the Dark Maiden being among them. Post-Sundering, after Flamerule of 1489 DR, Eilistraee is alive again and she is one of the deities with whom the returned Mystra is currently sharing the Weave (as revealed in Ed Greenwood's novel "Spellstorm").