@Vanity 6 Yeah, on the one hand, the Holy Roman Empire is still more or less done for, and France is still the hegemon of Northern Italy (minus Venice, which Austria holds); on the other hand, the Papal States and Naples still stand in the way of any future prospects of Italian Unification, and even if France complete undercuts Austrian power among the minor German states (as Napoleon did 1802 OTL), any hope of a lasting peace is going to depend on doing so in a way that does not trample over the concerns of Prussia and Russia (which, at least according to Esdaile, Napoleon did OTL).
On top of which, there's also the Batavian Republic still existing, Austria getting more ethnicities (Poles and Venetians) without the strain of having to fight a conscription army, not to mention Spain avoiding the Peninsular War, etc...
CONSOLIDATION: What about other aspects of the legacy of these wars -- for example, even if France still institutes their own new Civil Code, would the rest of Europe follow suit as much as they did OTL? Without needing to pull together and revolutionize to topple the French dictator, what does this mean for the civil systems and interstate politics of Europe? What of Latin America? Or the rise of Romanticism? Or the Industrial Revolution?