D&D (2024) Which Setting Featured Already in 5E Do You Want a New Supplement For?

[Aldarc]

Eberron will probably need one for species and the Artificer to be updated to the 2024 rules.

 

[Stormonu]

Eberron will probably need one for species and the Artificer to be updated to the 2024 rules.

Speaking of Eberron, I'd be all for an Indiana Jones style quest across Xen'drik plumbing giant's ruins while evading drow tribes and agents of the Emerald Claw nipping at the group's heels as they try to uncover the hidden fabled Vault of Khyber and the enemies of Khorvaire use it to launch another war with a second Day of Mourning...

 

[Vael]

Eberron is definitely my first choice. But afterwards ...

Radiant Citadel comes to mind. It's new, barely skimmed over and has promise for interesting ideas.

 

[Vaalingrade]

Eberron!

I wans some Breland/Karnath spycraft.