/snip
Personally, I would love to see a new Greyhawk released. My own personal opinion is that there are only three requirements:
1. The Darlene Map. I mean .... c'mon.
2. Try to keep the sense of mystery. I may have a preference, but I don't care what timeline they eventually settle on. But what I would like is that the follow the Folio/Campaign Setting example and have it full of mystery and hooks that DMs can choose to expand on in their home campaigns.
3. Make it interesting. Nothing about the old setting is sacred. I just want something good that is appealing to new players as well. There are so many different "takes" they could use- a GoT-style politics setting, or a S&S + gonzo setting, or a "barely holding on to civilization" setting, or some other take. Just take a point of view and stick with it.