Let's say Louis XVI is a more asserive and proactive monarch who clamps down on the excess privilege of the first two estates, all the while garnering a base of support by appealing to the salons as well as those who wish for a more Prussian style military structure. As a result, serious question over the status of the Bourbons remains unknown until the mid-nineteenth century when it has to face the industrialization efforts of the British and the Prussians. In the meantime, how does one Corsican soldier advance along an army rising in discipline and advanced military strategy?
Given Bonaparte will still have his ambition and his genius I can see him having a similar path as the Duke of Marlborough: fighting numerous campaigns on the European mainland, ecspecially across the German spheres of influence being contested between Austria and Prussia, while on the domestic front he becomes known for switching alliances based on what will gain him influence in the court and the Estates General as well as revolutionizing warfare away from Marlborough's fields of attacks towards styles that took in the increasing power of cannons.
Given Bonaparte will still have his ambition and his genius I can see him having a similar path as the Duke of Marlborough: fighting numerous campaigns on the European mainland, ecspecially across the German spheres of influence being contested between Austria and Prussia, while on the domestic front he becomes known for switching alliances based on what will gain him influence in the court and the Estates General as well as revolutionizing warfare away from Marlborough's fields of attacks towards styles that took in the increasing power of cannons.