Enjoying what I've read so far but I do have to kind of side with those who say that the French revolution would go differently. For a start bear in mind that much of the reason France was so flat broke leading up to 1789 was that they had paid so much into supporting the American Revolution. With a failed Revolution, far less debt and far less bankruptcy. That's not to say there won't be economic hardship - there probably would, and the King would likely be equally weak in his control of the situation. But one would presume that the start of the revolution would be pushed back even as much as half a decade or more, and most likely the flash point would thus be somewhat different. With a difference in time to this effect, you could see changes - for instance, Bonaparte might have faded into obscurity after several more years of no real action, or may have chosen to pursue a different path after a while; others may have died or nobodies arisen, etc. And perhaps with a somewhat richer France (not rich, just..."richer") there might be less need to invade Italy, which was after all nothing more than a money-spinning campaign by plundering the north of all its cultural legacies and selling them for coin?
And with the further introduction of a Jeffersonian faction (you never stated one but I'm assuming that was the intention) perhaps the Third Estate becomes yet more unstable when it managed to assume control of the National Assembly from the other two estates and the really quite vicious politicking of OTL (the Girondists, all the left-wing radicalism, etc) could perhaps lead to the Assembly actually being weaker overall, and factions less able to command a sizable majority in any debate. Alternatively, perhaps it might get stronger if one faction uses the presence of several more factions to actively dismantle an opponent and become stronger through stepping into a vacuum that never existed OTL.
The only other thing I would question is whether the Iroquois, back a few updates, would not be given some manner of protection. After all, you stated that they were leading figures in the hunting-down of Arnold's rebels. I can go for the idea of the disloyal Indian tribes being opened up for expansion, but strategically helpful or no, surely the Iroquois would be protected? After all, the British government was generally quite pro-Indian in such matters. Might we also see some manner of an American Congress being formed, or perhaps multiple regional congresses (as has been speculated about on this forum, I know)?
Anyway, just ideas to mull over. No obligation to agree with any of them, and certainly don't feel obliged to include them. This TL is your own, after all.