@HelloRaptor Sarcastic response: If it's not white, eurocentric, and would fit in World of Warcraft, gone.
Actual response: If it's not white, eurocentric, and would fit in World of Warcraft, gone.
Chult? Native civilizations wiped out.
Halruaa: Exploded.
Luiren: Caught in the shockwaves of Halruaa exploding.
Mulhorand: Swallowed up by some resurgent shit from Netheril, completely expunged.
Maztica: Whole continent replaced so they could have Dragonborn.
Al-Qadim and Kara-Tur didn't get touched on, mostly because the FR 4e writers didn't have time to bring them to ruin to add in the kingdom of blue-skinned elves who are often druids but totally not a WoW-rip.