No, it will work because without the Grand Armee dying horribly on the retreat, then the German states will see nothing but slaughter waiting if they revolt.
You know, the whole being tired of being shot up for nothing. Especially when Napoleon and his empire is still as intact and the army just as dangerous and large as it was when they stopped fighting him.
Its like you think the continent will just happily bleed some more because Britain is mad. No, without the disaster of Russia, France and its allies can keep the boot on Europe long enough for it allies to have an investment it actually defending the French Empire. That and the mere threat of raising excessively large field armies against France is likely to be met with overwhelming force and the deposement by diktat of the dickhead who tried it.
Britain. And Austria. And Prussia to a lesser extent. And Russia isn't exactly happy either.
Napoleon deposing anyone who dares oppose him is going to cement this dislike, not shake it.
Russia has no interest in Napoleon dominating the continent, however much they may not care for the Hapsburgs.Im guessing that Napoleon will depose certain royalty and consolidate it under loyal leadership and crush revolts using both his Frenchmen and native troops.
And Britain will eventually be helpless as far as fighting on the continent. I wouldnt be surprised if Napoleon ended up working with Prussia to simply strip the Hapsburg family of its possesions if they continued to aid Britain. Hell, Russia might get on in some of that action.