Scenarios Abound
(First AH post, but I have enjoyed lurking and reading and stimulating my, I now realize, lacking sense of history.)
Skipping over the multitudes of PODs in the failed AR, it would seem that the next truly major crossroads would come as the disillusionment of the slave trade began to ramp up in the early/mid 19thC. Should Mother England decide at some point to ban the slave trade, the southern colonies and their 5 or so decades of expansion westward would suddenly be hopping mad. "Colonial rights" would become the rallying cry of a new Confederacy, though their ire would be directed at Britain, not just the northern colonies.
The big question would become, I guess, would the northern colonies (now including the Canadian, since they would all be under the same umbrella) join in any secession/revolt attempt? Would the rest of Continental Europe have manpower, resources or will to join either side, esp. without a successful AR to base so many of their political changes upon?
Most Confederate-Victory AH I've seen has them fairly content to remain within the borders of their pre-conflict territory, but if they were a collection of royal colonies (as opposed to states) and the north sided with the crown, would there be push towards expansion here in NA?
Hope I can contribute something along the way, love reading everyone's posts here.