The latest info I was able to find on human/ape taxonomy indicates that the tribe Hominini comprises two subtribes, Australopithecina (the australopiths, obviously) and Hominina (basically living and extinct humansthat is, anything of the genus Homo). So unless I'm mistaken, which is entirely possible, this means that the term "hominin" still refers collectively to the australopithecines and members of Homo.