Say that in 1848, the Hungarians win the Revolution, I cant really know how (Not good with Austrian/Hungarian history) but to say that they won and Austria is basically left with its former territories.
Would Austria be slowly balkanized by the Czechs, Galicians, Croats, Poles, because it lost one of its major territories or could've it ride out by keeping them and survive without Hungary (Which the Austrian Empire looks honestly weird without the Hungarians...)