Just out of curiosity, do people really use the ELH that much? Our group thought that it was "broken" (I really hate that term but it gets the point across) and it has pretty much collected dust ever since.
Are people asking for a rewrite because....?
1. They like to read crunch even if they don't use it.
2. They use the rule set routinely and would like a 3.5 update accordingly.
3. In theory they would run epic level games but the ruleset didn't run the game effectively.
Sorry to create a poll within a poll, but peoples responses got me very intrigued.
My vote is a combination answers and would have to be titled "Exotic Locales". I would update Oriental Adventures to 3.5 without duplicating alot of the old material and dump Rokgakon specifics (which I think they have to anyways). I would give Al-Qadim the 3.5 treatment it deserves. Then provide material for other cultures including Inca/Mayan/Aztecs. Possibly Indian and African. This would be a sort of tool kit book ala D20 future. The goal would not be to give you a playable setting for each culture but instead give you the basic building blocks to place an Al-Qadim like region into your homebrew or existing campaign.
The book would have PrC, significant artifacts/magical items, brief historical/cultural backgrounds, culture specific weapons, monsters of legend, and if possible some sort of pantheon.
Granted this book idea gets more expensive as I think of cultures and material but I think it would be cool