I think McEwan will be done (as in unable to pull of as many victories) by then. I know Zabel is still going strong(ish) but he has good lead-outs. Can't think of many other known Aussie sprinters that would assist.
Plus I think it's kind of the wrong way to go. As Tim pointed out in another thread, the sport needs cash from corporate bodies in order to survive. On reflection, the cash that has been pledged is not a lot when it's split over 3 years. And what about the situation where there are more good Aussie cyclists than spaces? Would they simply ride for another team? That doesn't seem right to me.