Now personally I don't think Yugoslavia was winning this one, and I'm not even an anti-Serb person. But I digress...
A Yugoslav victory would depend on where they win. It's already a tall order with regards to Slovenia (their heart wasn't in it, and the Milosevic regime wasn't interested in keeping Slovenia, as there were no major Serb minority in the area compared to Croatia & Bosnia-Herzegovina. It was a matter of whether Serbia could beat Croatia and Bosnia (as well as Kosovo), as well as fighting back NATOs bombing campaigns. But should they succeed (more so before NATO got involved in a more active role.) I'm half expecting a Yugoslav-state that, at the very least while much smaller than before the wars began, would still be mostly together, under Serbian domination.