Sounds kinda like my Hindustani game (except for the GH part). Hesse has emerged as the largest German minor, but it's still tiny compared to Mega-Austria and Burgundy (currently the Emperor). Burgundy is just a couple of provinces away from becoming France. Castille has pretty much the entire Iberian peninsula, and a huge swath of the New World. Naples has control of historical Naples, but its capital is in Canada and it owns much of eastern Canada, the Ohio Valley and New England. There are currently three provinces controlled by American Seperatists, which will generate a Sicilian-cultured United States of America eventually.
It's 1764 now, and the only New World countries to have formed are Mexico (which is an odd mix of Breton and Portuguese), Peru (likewise Breton-Portuguese) and Venezuela (which is substantial in size and Hannoverian in culture).
For my part, I've annexed Shan, so I now control the central Burmese highlands and much of modern Thailand. My main impetus for that was to establish a direct corridor to the Ming Empire. I already beat Ming in a previous war and forced them to convert to Hindu, but they have done a poor job in spreading the light of Vishnu, so I'm taking matters into my own hands.
In the west, I've pushed the Persian Caliphate almost entirely out of Persia, forcing them up into Kurdistan and bits of Armenia and Georgia. My coastline now extends in an unbroken line from Basra to Rachbutani (the eastern Thai coastline). My national income is over 10,000, my troops are up to Frederickian Infantry, and my army and navy are unsurpassed in the world. Still, the Maharajah is unsatisfied. He demands more land and more wealth, though our coffers are overflowing with the wealth of the world.