Athas is dead, but Ghostwalks teachs in D&D to be dead doesn't mean the end of the party.
The metaplots in the D&D worlds aren't only for the games, but for the multimedia projects (videogames, novels, comics, toys, movies and teleseries).
I wonder about if WotC is going to introduce the concept of time spheres/ parallel worlds, to allow players to create their own "uchronies" or alternate timelines, but I don't know if this is possible in Athas or this is "special". A reboot of some lines may be neccesary, but also it's risky for the complains about a "jumping the shark" effect.
* If feel curiosity about the dark domain of Kalidnai in Ravenloft. I suspect the sorcerer-king Kalid-Ma hasn't said his last word.
* Dark Sun has got slavery and gladiator games, but also the movies of swords and sandals, for example "the robe"(1953) with Richard Barton, or Barrabas(1951) with Anthony Quinn. The true key of this matter is about we respect for the human dignity.
* DS is a mixture of planetary romance, sword and sorcery and ecologic post-apocalypse.
* I have said some times in the past some D&D line will come back throught the front door, with dignity, but with accompanied with some media production, movie, teleserie or videogame. (a blockbuster action-live movie or a videogame need a lot of time and work. maybe the easier option would be a CGI teleserie for media streaming services).
* Does DM-Guild allow artists to earn money selling their own sketches of DS characters?