If anybody want Libya, well the answer of any italian goverment will be a: you are welcome and good luck. Post war we needed 10 years of brutal desert warfare to subdue the Senussi and with basically nobody to help them...if other want have the pleasure and yes i include the Ottoman as they have done a lot of big promise to the Senussi Emir, promise that they haven't any intention of keep, well yeah good luck.
Regarding Albania, again good luck, the place was more or less in anarchy and without any goverment now and needed years to stabilize and there is Serbia that will be also in need of pacification
All said with a bit of an anti-Austrian bias, no?
What reforms will the Common Army want, given it was a bulwark of the regime and virtually one of the only institutions after 1867 that united the peoples of the Empire?
A victorious War will be a fillip to the Hapsburgs, not a detriment. OTL the route cause of the collapse of the Empire was, bizarrely, the faith the populace had in the Emperor and the degree to which they believed the propaganda on how well the War was going. Once the truth was revealed and the privations of the late War supply and financial situation began to bite (which one would assume would not be present in an ATL successful War scenario) the populace rapidly turned against the regime. It was because they held the Emperor in such high regard that the failures of the late War were reacted to so extremely.
The effect of the Peace Treaties can’t be underestimated either. When the surviving Great Powers removed 60 and 70-odd percent of the territory of the two halves of the Empire, it’s all well and good decrying the ability of the Empire to remain united, but the dissolution wasn’t a singularly domestic phenomenon.
No, I simply a look to A-H without the rosy tinted eyes; was a nation more fit to the 18th century than to the 20th everybody knows it but were also scared of any type of change so instead of reforming in the last 50 years they kicked the can as much as they can...unfortunely there are limit at this.
A victorious war? Maybe, but this is not a victorious war, this is surviving the most great bloodshed know to man till that moment, loser or winner at this level are meaningless word, too much blood, too much treasure spent and the new emperor surely don't have the same respect of old Franz Joseph.
Frankly can A-h survive something like the
https://en.wikipedia.org/wiki/Biennio_Rosso? No, at least not without a lot of German help and not only will come to a price, it will also not be eternal as they will have their own internal problem.
Maybe if Austria-Hungary follows those plans of real federalization, with the creation of a multi-ethnic organization of states which might overcome the dualist Austrian & Hungarian concept and replace it by a more true multi-ethnic concept of state, they will increase their internal stability and also incorporate new territories of their interest without such high levels of resentment.
The ideal of Mitteleuropa would fit much better in a federalized evolution of A_H rather than those backward Prussian concept of a German Empire with puppetized satellital duchies.
Good luck not only in bringing on board the Hungarian but also anybody in Wien that don't want give up power; you need some ideological glue to overcome this, if we are talking about a communist or fascist takeover i can agree as ideology will be what will keep things (more or less) together, otherwise there is no incentive especially due to the fact that everyone will know that the one really calling the shots of this nation live in Berlin; because at the moment the backward Prussian are the one in charge, even if they have their own troubles.
Sorry but any Mitteleuropa will be basically Germany that command his puppet for his own advantages give everybody else some crumbs, sure they will not the nazi but basically it will be what the sovranist/conspirationist say of the modern EU is.