Sounds like France will be out of the top league for a while.
I was also considering;-
1] The loss of prestige for Piedmont-Sardinia; probably no united Italy? continued Austrian domination?
2] Scaling back of French colonization; Madagascar, India, Indo-China? stronger native states or other Europeans take an interest?
3] Franco-Prussian War, does this still happen/
4] Austrian-Russian co-operation?
5] British scale back colonization due to backlash after defeat? Indian revolt 1857?
What are your thoughts?
France since 1879 hobby is chaotic politician landscape. (At least defeat in Crimean is no where as bad as the Fracno-Prussian War. That is what saves the Monarchy.)
1: I feel like the wheels and gears of Italian unification is already on the move. Have Austria treat the Italians better under their rule would help. But as long as there a Garibaldi, you still have Italian unification in the cards. Getting rid of him would derailed it all. You would something like 3 states. (Piedmont-Sardinia, Central Italy, Two Sicilies.)
2: France, or at least the public was never particularly enamored of colonialism, so I can see that.
3/4/5: Bleh mention that the British and the Freach would in fact support a German Confederation to act as a counterweight against Russia. Austria and Russia comes to even greater blows and tension,and in turn Austria is force intocooperation with Prussia. (Which works for Bismarck greatly.) The British pours money into strapping India with railroads and moving troops into Central Asia.
The issue with 1857 is the revolt was not united, and most of India (Like the the Ghurkhas who are intensely loyal to Britain.) remained loyal to the British and loyal sepoys played a crucial role in crushing the rebels. The Sikhs in particular never wavered, even though they had been fighting the British fiercely a mere decade earlier (the Sikhs hated the Mughals much, much, much, much more than they hated the British). It be smash in time as in OTL.