I have at times considered writing something along these lines, but primarily held back by virtue of knowing fairly little of the minutiae of the ARW. I had considered the angle of the black loyalists: If they are settled primarily in Georgia instead of scattered about in the Carribean, Canada and the UK, they might form a significant population bloc in and of themselves (the population of Georgia after the ARW was just over 80000, while there were tens of thousands of slaves freed by both sides with promises of freedom. Thus, when Britain starts to blockade slave trade and abolishes slavery in the British Isles, Georgia might well also have an abolitionist plurality if not majority (probably very much depending on if some of the poorer white population goes along with it), which would lead to interesting things.
Physically separated from Canada, Georgia would be a separate colony/province with a separate legal system. The heraldry is easy as well, assuming anyone of the loyalists knows enough about history to know the flag of the kingdom of Georgia (which disintegrated in 1490) to incorporate it, which I find very possible. Depending on how one looks at it, it'd be either the White Ensign with small crosses in three corners or the historic flag of Georgia with the Union Flag in the canton. Georgia might possibly end up in control of some of the British Caribbean possessions eventually.
Physically separated from Canada, Georgia would be a separate colony/province with a separate legal system. The heraldry is easy as well, assuming anyone of the loyalists knows enough about history to know the flag of the kingdom of Georgia (which disintegrated in 1490) to incorporate it, which I find very possible. Depending on how one looks at it, it'd be either the White Ensign with small crosses in three corners or the historic flag of Georgia with the Union Flag in the canton. Georgia might possibly end up in control of some of the British Caribbean possessions eventually.