before this discoverie we thought that our genealogy was this one :
Australopithecus Afarensis, then homo habilis, then homo erectus, then homo sapiens
now, we think that our genealogy may very well be this one :
Australopithecus Afarensis, then Australopethicus Sediba, then homo erectus, then homo sapiens.
Habilis would be a distant and infertile great-uncle, not a direct ancestor.
another consequence is that Homo could have evolved not in eastern Africa, but in southern Africa.
not exactly the same biotope and climate, so we probably would have to rethink the origin of bidepal locomotion.