So; I threw down some ideas for a Dark Sun game (imho “D&D Mad Max with obsidian weapons and bug armor” is a neat idea). Noticing;
1) especially because the last really good Dark Sun info was 4e, this might be hard to sell players
2) especially given the importance of thematically cool combats in 4e, areas with cool gimmicks and usable features are the combat encounter equivalent to having cool NPC personalities in social encounters.