Five bucks says the Dray are going to be Dragonborn and that they're somehow going to wrangle in Tieflings as a race.
I'd say that there's about a 90% chance that the Dray are going to be dragonborn, but as a huge Dark Sun fan myself, I can't for a moment bring myself to care.
I am also 100% positive that a new 4e setting will never, ever say, "You may not use Tieflings in this setting." It won't happen. What you will almost certainly see happen is something like they did for off-race Dragonmarks in Eberron. Something like, "There are no known Gnomes in Athas. They are believed to be extinct from Rajaat's Cleansing Wars. If one of your players runs a gnome, they may very well be the only one, and it could do way freaky things to the setting, possibly even igniting new Cleansing Wars or at the least earning the enmity of some Sorcerer-Kings."
After thinking about it for a bit, I'm not desperately angry about the fact that they're changing the setting. No one sensible would be. My issue is that they're changing the PREMISE, like the fundamental rules of Athas. What races there are, how brutal it is, the fact that there no Gods(or Primordials, or anything of that order.).
The Primordials are a pretty decent fit for Athas, from everything I've read. I'm going to wait and see, rather than get my panties in a bunch over speculation. Primordials could suck in the setting, or they could be a new and interesting way of re-envisioning it. I'll withhold my judgement until, you know, I can actually see the setting.
See above as for the races. However, IMO what was important for Athas wasn't
what races were present - it's
how the races were presented. All of them were existing races with a Dark Sun, post-apocalyptic, twist. If they do the same to other races, it's a job well done in my book.
There's no reason the list of races has to be set in stone. "No Gnomes" was hardly a major defining feature of Dark Sun, cleansing wars or no cleansing wars. OTOH, cannibalistic jungle-dwelling halflings, dune-running elves, and bald dwarves
were.
Heck; TSR expanded the list pretty greatly during the revised setting, too. Where were the hints of Pterrans or Aarakocra in the original box set? WotC would not be the first one to add new races to the setting, so what's the issue? Is it that only TSR had the right to do so, and they're not TSR?
Ah, but you can't have that, because Dark Sun has no outsiders. Permanent. It has no Baatezu, no Devas. At most it has some sort of Genies since they are more Elemental creatures than Outer Planar, but they do not produce Tieflings and in fact I'm not sure they can even crossbreed with humans.
Yeah, and it also has no githyanki or anything to do with the Astral Plane! Ohwait...
The lack of Gods or connection to anything non-Elementally planar is an INCREDIBLY major part of the setting. It means there's really next to no easy healing magic or anything of that order. No one to pray to for help when your ass is truly on the line. No great moral or ethical commandments laid down from above. No assured bountiful afterlife as a reward for altruism.
No easy healing? The druids in my 2e games would disagree with you!
Also, I completely fail to see how any of the above is incompatible with Primordials. In fact, it kinda fits right in, thematically.
-O