That is something to ponder anyways. In my scenario, with North Shcleswig Danish and South Schleswig and Holstein as an independent Augustenburg Duchy as a member of the German Confederation, and with generally greater GC involvement... this will be much more a GC victory than a Prussian victory. And as eariler Prussia now doesnt have a convinient casus belli against Austria anymore, putting a dent in Bismarcks great master plan (which wasnt German unification, but kicking Austria out of Germany). So Austria could then go about with its plan to strengthen the GC under its leadership. It didnt want an united GC, of course, but who knows, after some decades of development a la EU started like that?