I'd think that Africanus cultures would be more sedentary than our own. Why?
Look at their jaws. They are less well developed than our own, clearly meant to digest softer foods, like fruits and vegetables. Our own jaws are built for meat, which is reflected by the fact that most of our early civilizations were herders, first following the wild animals across steppes and forests, then working out a selective breeding program (it seems that the animals, rather than evolve to be faster and harder to hunt, became fatter and slower, possibly because our ancestors exterminated the fastest, leanest ones while protecting the fat until they breed) and remaining herders for a long time. Our cultures are built around migration, so much that even today most people change homes repeatedly just for the sake of it. I'd assume Africanus would settle in flood plains, like the Nile or West Igluk first, and develop communities around sedentary plant agriculture, the way our own people did in the southern portions of the Americas after wiping out the Mammoth and Mastodon herds. They might live their whole lives no more than 5 kilometers from their birthplace.
Because of that, they might be more varied than we are. Our ancestors met and bred with other tribes frequently, as our ranges crossed. That's why the peoples of the Volga region are so similar to those as far away as Turkey, Iran, Mongolia, and France. The Africanus, in remaining stationary, would have isolated themselves from each other. This could lead to more pronounced subspecies.
OOC: All place names (except Igluk) are taken from human names, and would obviously have analogues in Neanderthal World. However, I'm too lazy to come up with them.