Yeah, I don’t see the two preventing Germany and Italy from uniting. If anything, Italy might end up getting Lombardia, Venetia, Tyrol, Istria, Savoy, Nice, and Corsica, and Germany getting Bohemia and Moravia, as well as Elsaß-Lothringen - more territory than either got in our TL. As it was, the only reason Germany couldn’t take Austrian territory was because of the threat of France. If it’s already in a war with France, then it could easily take Austrian territory, maybe even force Hungarian independence or at least Transylvania going to the Romanian Hohenzollerns. I don’t see this ending well for France, though Napoléon II may stay on the throne if the Germans militarily support him for a year or three and he successfully blames the military leadership and legislature.