Zardnaar
Legend
I've said it before in other threads but I'll say it again. D&D is in a constant state of flux as creators have made additions to cater to the changing needs of the gaming community. The original game from 1974 was not the same game most people were playing in 1985, which was different from what we were playing in 1995, and, well, need I say more about 2000? D&D has changed and will continue to change in order to remain relevant to gamers.
While I respect Gary Gygax as one of the foundational pillars of our little hobby, I don't believe he's all that relevant to most D&D players today save as a historical curiosity. What exactly does Gygax mean to most D&D players today? His involvement in shaping the game ended in 1985 before most of them were even born, they don't use any of the rules Gygax created, the don't play the game the same as it was played in 1982, and when seeking advice on how to run a game they're not going to turn to Gygax's writings for advice. I have fond memories of Gygax's work, but I would sooner poke myself in the eye before I'd run a game using AD&D 1st edition.
I have some sympathy with the diehard Greyhawk fans. I'm still a little bitter about a lack of alignment restrictions for Paladins. But time marches on and WotC isn't worried about what little old me thinks. The diehard Greyhawk fans are a tiny base that isn't going to be catered to by WotC. Welcome to old age, folks!
I'm not expecting GH to be 100% 1983.
I would prefer a somewhat faithful adaption though with ye olde classic races only.
Until they print it can't really say one way or another as they did use the unless visiting from other world's line in Ravnica/Theros.
Diversity to me means variety so yeah making GH slightly distinct from say FR via races for example is one way.
New players seen to buy anything 5E so unless they go full derp I don't think it matters to much one way or another.