First post!
As in "The USA still has no official language, but German replaces English on official documents and becomes the language taught in public schools". This seems a bit unlikely, but maybe there is a larger influx of German immigrants?
I'm really wondering this: the US was was extremely hostile to Britain for a long time after the Revolution (and vice versa, I understand). Does the Great Reconciliation never occur? Is it at least slowed because the two countries now have much less in common? Does the United States perhaps become more culturally German and thus diplomatically closer to the eventual Germany?