Finally got around to looking up the amended map.
Here's a link for anyone that's curious.
Kingston gets Moody AFB after all, which causes the 1st, 8th, and 12th districts to each rotate a little bit clockwise. The 11th takes in a bit more of Fulton, making the 6th slightly safer. The 3rd gets a bit more of Fayette, at the request of a few state legislators in the area.
Dunwoody is pretty pricey, is it not?
The median income for a household in the CDP was $82,838, and the median income for a family was $100,796.
I was thinking more about the areas between Dunwoody and south Dekalb, like Doraville and Tucker-places that have seen substantial hispanic growth but relatively lackluster black growth. I guess it could just be a social snowballing effect ("hey, this family member/friend of mine, who happens to be my own ethnicity, just moved to this place and says that its great! Let's move there and say the same thing to other family/friends who are coincidentally the same ethnicity as us!).
That's definitely true for Hispanics, with the language barrier playing a huge role in it.
To give you an overly simplistic answer, blacks aren't moving to Doraville/Tucker/etc. because when someone's moving out into the suburbs it's because of upward social mobility, so they wouldn't be moving into an area that's poorer than the area they left.
