I'm sorry this was cancelled - I like this TL a lot, although I do agree with some others that it seems like the Franco-British treaty is more favorable to the British than it could be. I would think that France could swap Minorca and Hanover for its colonial territory back. In OTL, Minorca was enough for France to get back most of its Caribbean possessions; throw in Hanover and I'd think Louisiana and India would be returned to France as well.
One quibble: under French rule, the name Quebec referred only to the capital city, so "Quebec War" would only make sense if it were fought entirely in the vicinity of the city. The colony was called Canada when it was French, and then renamed "Quebec" when the British took it over.