Looking at the POD given (Seven Years War, or as we Yanks arrogantly call it, the French and Indian War

), then we'd probably see, in the end, a powerful French fleet and a much weaker Britain, that would probably see the Thirteen Colonies break away...and the much more powerful France, and it's supernavy, prevent them from effectively contesting it. This version of the U.S. would probably be totally pro-France, and would also be unable to expand beyond it's coastal borders, while Louisiana would like develop along the course of the British Domnions OTL, although I think the Indians would play a much bigger role, since France never seemed to populate its colonies as heavily as Britain, for whatever reason.
Oh, and Germany is f*cked. Probably a weak North German Confederation, and an annexation of the South by the Hapsburgs.
Of course, I could be wrong. You ask some people on this board, I apparently can't ever be right