This is completely my own baseless speculation, but I think there is a big fish in the pond that is inspiring WotC on how and why to bring back Dark Sun, and it's name is Fallout. War, war never changes.
I think Baldur's Gate 3 and the continued popularity of gritty and mature RPGs kind of blow up the whole "modern audiences are too weak for Dark Sun" argument. Curse of Strahd is still the most popular 5E adventure, after all. The two new Forgotten Realms books didn't make any effort to...
Many players do not know the difference between a retcon, and the world just moving on and the state of the world changing. A retcon is "Spider-Man never lost Gwen Stacy." The timeline moving on is "Spider-Man was dating Gwen and then she died."
I'm honestly a huge fan of almost all of these lore developments and how the world is changing. My hat is off to the whole team, they've done the Realms proud in the story department.
Trust me, the internet is barely representative of real fantasy enjoying communities out there. People in the real world love mature fantasy. Modern viewers are much, much smarter than people give them credit for.
More than likely they're working on new Dragonlance gaming materials and exploring what form an adaption of the Chronicles would take. But we will see gaming stuff well before any adaptation, I wager. Also, everyone is assuming it will be a TV or Movie adaptation, but I propose that a video game...
We'll find out in 11 days. I'll come back here and admit I'm wrong if they aren't there. Note I do consider a little line like "Since the Second Sundering they have taken new names" to be the same as them still being there for obvious reasons.
It was inappropriate because of some of the pantheons and IP chosen lol. In terms of real world religion and mythology, let's just have look at a small selection of the new DMG. We have referenced:
River Oceanus
River Styx
Yggdrasil
The Abyss
Thanatos
Orcus
Baphomet
Acheron
Orthrys...