I second the desire for a low-magic setting with a grounding in real-world history, preferably with a Dark Ages theme. Fans of wahoo fantasy have settings from the relatively-sedate Forgotten Realms to the totally-out-there Planescape, but us low-magic folks don't have a single one that I know of. Greyhawk is the closest there is, and that's not very close.
I would also like that low-magic setting to be anti-cosmopolitan. If you walk into a human city, you don't see elves and dwarves and gnomes and dragon people walking around. You see humans, and that's it. People turn their heads and stare when an elf walks by. When a dragon person walks by, they grab pitchforks.
Total revamp usually makes all the people who already love it hate it.
And if you make it for new people, you can start with something entirely new, without antagonizing existing customers.
Agreed. There's nothing wrong with putting a little spit and polish on an old setting, but total revamps are always a mistake. They've been doing big overhauls and revamps of D&D settings for decades*, and I can't think of a single one that was not roundly despised by the fandom.
[SIZE=-2]*The earliest that I know of was the Time of Troubles, taking the Forgotten Realms from 1E to 2E. "That makes no sense," I can hear you saying. "1E and 2E were so similar that people routinely used 1E books in 2E games. Why would you do a giant overhaul just to cover that transition?" Well, apparently it was
really important that players not be allowed to carry over their assassin PCs from 1E to 2E, so they needed an event to justify exterminating every assassin in the Realms. Or something.[/SIZE]