Well, about the only PoD I can imagine is Austria-Hungary bowing out of the war early (as they initially intended, but those efforts ultimately fell through, with the French letting the information slip to the Germans who put an end to such talk). Suppose the Germans are doing somewhat better and France is more worried.
Austria-Hungary leaves the war early and is forced to cede South Tyrol, Trieste and Istria (the absolute minimum Italy would settle for, which in an early peace they'd get, but the Entente might be desperate enough to knock Austria out of the war not to push things too far). Serbia gets released and gets Banat/Vojvodina (and annexes Montenegro soon afterwards).
Austria-Hungary totters on for some months (as the war turns increasingly bad for the Germans) before collapsing. Their army is basically gone, their industry is collapsing, their infrastructure not even capable of feeding the population and the government's legitimacy is thoroughly compromised. Hungary is the first to leave (conversely, Croatia promptly leaves Hungary), Czecho-slovakia breaks off soon afterwards. Galizia joins newly-independent Poland (established by Germany, but with the German war effort close to collapse, Poland is basically establishing itself as an independent country).
Slovenia decides to stay with Austria and, in the chaos, Austria manages to secure the port of Fiume. As the Serbs march into Bosnia (and begin taking revenge for their treatment during the Austrian occupation), Croatia jumps ship and winds up with Austria, giving Austria a coast-line ... and a fragile, vulnerable construct with potential enemies on all sides and a long border with Italy that very, very much wants that piece of coast Austria has just gained. Serbia's not friendly. Czecho-slovakia is worried about a vengeful Austria. Hungary is ... well, they put the nail in the Empire's coffin, so they're not friendly. And then there's Germany, who'd very much like to annex Austria (and gain a breathing hole in the Mediterranean).
The Habsburgs may or may not be forced to leave. They are probably forced out, their legitimacy is basically gone by this point, even if some loyalty might stay ... enough for an eventual restoration if alt-Austria survives.