I believe if the Hungarian Revolution of 1848 succeeded, this would mean a greater chance of Austria being a part of an earlier German Empire. Bohemia would eventually be incorporated too, but the Czechs will not be very happy about it for sure, but as a result, I think this would mean that the Bohemia would face assimilation and become mostly Germanized over time. Lombardy-Venetia would still go to a united Italy as OTL and I think either an independent or Hungarian-dominated Croatia will seize Dalmatia, but I think Italy would take it too if it's possible, since the Italians had a historical presence there. Galicia-Lodomeria would certainly become a part of Russia in this situation.