One amusing scenario is for the Hungarians revolt, the Austrians say "Fine but you're not keeping Croatia-Slavonia, Bosnia and Herzegovina, Transylvania or the Banat" and proceed to use the armed forces to crush the rebel troops forcing them to accept. Hungary gets its independence but is now landlocked and surrounded by Austrian Empire territory.
In an ideal world rather than just that they'd impose Hungary's modern borders as well.
Well no, in an
ideal world if the Hungarians revolted the Austrians would militarily crush them then proceed to break off the bits mentioned, reduce Hungary to its modern borders, get rid of the gerrymandering the Hungarian magnates had done to massively restrict the electoral franchise, and confiscate large percentages of the magnates lands to distribute it out in plots to the poorer Hungarians. The Austrian Empire is reinstated with the government handling all matters such as diplomacy, the armed forces, foreign trade etc. with slow and measured delegated internal powers/autonomy being introduced to the constituent territories. But that's probably hoping for way too much.