Only three of the Seven still live: Alustriel, Laerel, and Storm.
In Flamerule of the Year of the Lost Keep, 1379 DR, Qilué Veladorn was killed by Halisstra Melarn using the Crescent Blade.
At the time of The Herald five sisters -- Dove, The Simbul, Alustriel, Laerel, and Storm -- were still alive, and they helped Elminster prevent Larloch from obtaining godhood over magic.
In 1487 DR, Dove died from the wounds afflicted to her by Vattick Tanthul, who also perished. After Cormyr's War Wizards were turned against Elminster in the events of the novel, he was killed by a large group of them. The Simbul arrived in time to sacrifice herself and restore his body.
Thus leaving Alustriel, Laerel, and Storm.