>>1057821the thirteen colonies had more population than canada at the time of the revolution, so:
biggest concentration of power and industry in british north america would still be south of the saint lawrence and in the great lakes
quebec also gets the northwest ordnance because of the quebec act, becomes a LOT more relevant and important in the future
french louisiana would probably be seized by the british come the napoleonic wars, and they may try to get as much of new spain and the viceroyalties of south america within its sphere of influence as possible if the peninsular war still happens (likely thing to happen is that new spain still keeps the mexican cession, while british north america's westernmost extent is oregon county)
third great awakening less likely to occur with anglican and catholic dominance in north america, so mormons and other protestant sects probably won't exist
if british north america is one whole dominion by the 20th century, then it becomes more populous and gets more industrial capacity and resources than the mother country, and may push for more influence in whatever the british would have for a parliament for its overseas dominions