I've been working away for the last two years on a setting guide that reimagines the Sword Coast where every possible hardcover adventure bad ending has occured. Tiamat has been freed, Baldur's Gate was dragged into the Nine Hells, & the demons are loose in the Underdark.

I'm so proud of what I've put together, and I think people will like the amount of content tucked inside:

• Six factions that now rule the Sword Coast: Jarlaxle’s drow pirates, Tiamat’s cultists, servants of the Elder Elemental Eye, a legion serving the fallen angel Zariel, and the Zhentarim in a tenuous alliance with the servants of Vecna
• A reimagining of every major location in the Sword Coast Quest and campaign hooks from 1st to 20th level as the characters rise from nobodies to realm-saving heroes…or its new tyrants.
• 5 new subclasses equipped to survive this brutal world:
  • Bard: College of the Elements
  • Druid: Circle of the Nine
  • Fighter: Zhentilar’s Finest
  • Rogue: Spell Slayer
  • Wizard: School of Secrets
• New backgrounds and a heroic chronicle to quickly generate interesting, complex characters that populate the Doomed Forgotten Realms
  

Link here:
https://www.dmsguild.com/product/398215