I think it has already changed what society considers the norm. Not only Black people have gotten back into natural hair. I live in Israel, and there are many curly haired people here, and summers are extremely hot. Even people who would normally wear processed hair themselves, braid their kids' hair partly because it's cute, partly because it is literally cooler, and partly because it looks neater as the day drags on.
Yulia Tymoshenko is also bringing braids back in Europe. So now it's not unusual at all to see people with braids or dreadlocks, even outside of the artistic circles of society. It is not really trendy anymore because it doesn't need to be. It has normalized.
So you won't see as many people going out of their way to get a style that doesn't suit their hair type, but they will happily wear styles that do.
Some may find it a little disturbing, but FLDS women are lately being considered the go-to people for natural hairstyles for straight haired people. Some of their styles are very fancy.