Short version: If you publish Greyhawk, do it in a classic style that retains the Gygaxian vibe. If you want a setting that expresses the game and community as it is today, make a new setting -- one that is explicitly designed to embody the qualities of D&D, c. 2020s.
Use different settings as opportunities to explore different styles and themes, rather than feel the need to cram everything into every setting (e.g. my joking example of "Starshimmer Elves" in Dark Sun, or "nice Drow"in Greyhawk). Each setting can and should be distinct and unique, imo.