Does anyone know whether it's likely that Aussie startups would be in a position to sponsor an immigration visa? My family and I are planning a move in about 4

Does anyone know whether it's likely that Aussie startups would be in a position to sponsor an immigration visa? My family and I are planning a move in about 4 years, and while I score highly enough in the "points" system that determines who can immigrate, the literature I've read makes it quite plain that I'll be better off if I am sponsored. Does this sort of thing happen down under?