I don't want to cause troubles, but I am going to await about the lost caverns of Ixalan to know the reaction by certain people.
Any things aren't only stupid words said by a school bully, but remains of a propagandistic war started centuries ago, literally centuries, and not ended yet.
DS is distopian, but always there was a space for the hope. It was about to start from zero again and to fix all the wrong one.
In 4th the metaplot was totally frozen or untouched.
There should be no problems but when the players and DMs can be potentially toxic.
* If DS was unlocked in DMGuild somebody could publish a sourcebook about the "biotech" life shaping by rhul-thaun.
* The cover by Brom of the sourcebook "Elves of Krynn" inspired me to imagine a mash-up where Dragonlance and Dark Sun were mixed. I know it sounds a crazy idea, and maybe it is, but some times the best ideas to start with previous failed attempts.
* Some times even in children cartoons there is some episode about the main characters are in a distopian alternate timeline/future.
* Maybe there is an alternate timeline where the ecosystem of Athas could be saved, but the chronomancers had to face the menace of a evil lord who had been killed by Rajaat in the "original" timeline. Or an aternate timeline the region of the tablelands didn't suffer the defiler magic, but a planar invasion by the sheens, biomechanical horrors.
* Would you allow vestige pact magic, ki martial adepts (crusader, warblade, swordsage) and incarnum soulmelders (totemist shamans) in a rebooted version of DS?
* There is an option: a reboot set in a "clusters of wildspaces" and the original Athas and the "Tablelands" would be the "far forbidden zone".