Then why ask for them?
Is there something special that will happen if they get an official seal of approval from WotC?
Will seeing them in a physical product (at a much, much lower resolution than available online) make some difference?
Hey, my Living Greyhawk region was Zeif. So I know all about limited official support.
But any official book is 100% going to be focused on the city of Greyhawk. They're never, ever going to do a big book of Ekbir. And even if they switch to Greyhawk adventures, the edition will end twice over before they get that far to the edge of the map.
But there's already a fan guide to Ekbir:
http://www.greyhawk.fr/IMG/pdf/guidekbir21.pdf
(It just happens to be in French, because that region in LG was French speaking.)
Why do you need to make new stuff? What's wrong with the old stuff?
Why can't you share your creations right now? That's literally what the Oerth Journal is for:
http://www.canonfire.com/cf/modules.php?name=Content&pa=showpage&pid=2
Funny you should mention Ravenloft. Because Ravenloft is one of the settings supported by the Guild. And there's practically nobody writing for it. There was a few splatbooks and accessories, but nobody really invested the time in new content. Because no one wants to BUY it.
No one gives a crap about someone's fan domain and homebrew darklord.
Oh, there are books listed under "Ravenloft". Subclasses and monsters and rules expansions. But there's almost nothing on the setting proper. And most is just tied to
Curse of Strahd. There's nothing on Mordent or Nova Vaasa or Darkon.
In part because there's more than enough official content. And in part because people have been giving away their homebrew for years.
It's just not worth the time and energy for people to formally write up the document, format it, and publish it...
I'm not.
Quite the opposite.
I just asked what was lacking to prevent people playing in Greyhawk right now. What is preventing people from playing in and using the setting? Again, the answer is NOTHING. If people wanted to play in Greyhawk, they would be.
This is very different than a setting like Dark Sun, where there are major species absent and big rules elements missing, like defiling. To say nothing of a metric tonne of monsters.
People played Greyhawk just fine for an entire generation with just the
World of Greyhawk folio. That's all they needed in the 1980s. Why is more needed now?
Could people write more content? Sure. But they can do that already. Again, there's no shortage of regional guides from the Living Greyhawk era still available online and fanzines and fan netbooks have long, long been a thing. To say nothing of exansions on forums or fan wikis.
People just can't sell them or make a profit.
It's not about people playing in Greyhawk. Or writing about Greyhawk. It's about people SELLING products with Greyhawk. The fans wanting to make money. I can't fault that, but I don't see that as a priority for WotC. And I think you're kidding yourself if you think Greyhawk being added to the Guild will somehow lead to expansive world guides being written and published.
What they have stolen?
Well, there's the Tomb of Horror and Temple of Elemental Evil. Both of which were only in Greyhawk by name only and meant to be placed in homebrew worlds. And both were about multiversal threats that affected multiple realms. Those aren't Greyhawk material. Those are D&D material. Claiming the elemental princes are a Oerth thing is like claiming the Demogorgon or orcs are an Oerth thing.
Oh… and in both cases, only new dungeons are in the Realms. The original remain in Oerth. It's just a alternate version in Faerun.
What else did they move? Name ONE thing that was *actually* moved from Oerth to Faerun. One.
