The Version 3.8 Preview Special Broadcast on Nov 6 revealed the update date, new Resonator Lily and the event lineup. This recap sticks to what the broadcast confirmed and flags what it left out.
Version: 3.8 (Lily Quietly Fading in a Distant Dream)
Update: Nov 12 (Thu)
New Resonator: Lily (Diffraction, Pistols, 5-star)
Signature Weapon: Lullaby (5-star pistol)
New Area: Soul Train
Release date and story
Version 3.8 goes live on Thursday, Nov 12. The new area is the Soul Train, which carries souls of victims of the old Resonator war and follows the story tied to the New Federation and the Realm of the Heart phenomenon. Victims left in the cars tell their stories, and the main story continues into Chapter 4 Act 5 of the assistant missions.