in an ameriwank in which Canada and Nova Scotia join at the revolution as the 14th and 15th states and the rest of OTL Canada eventually ends up part of the USA how many states could be reasonably be made from this territory? Assume greater then OTL population for USA from both more immigration and higher birth rate.
Do New Brunswick and PEI get to be states? They were their own colonies at the time.
'Ontario' is likely to be separate from 'Quebec/Canada', as it's likely to be settled by New Englanders and New Yorkers. BC would be separate, too, being west of the mountains. Probably only one, though. Although, it's possible, with that early a PoD, that Washington+BC+Oregon+Alaska could end up as 2 or 3 or 4 states.
The Prairies are probably the biggest question. I'd imagine either 2 or 3 states. (And the states might just be the farmable prairie portions - e.g. most of Alberta, but only half of Saskatchewan and only the farmed bits of Manitoba ('greater Winnipeg' to exaggerate).
Edit: What about Newfoundland? Do the Brits keep that?
Actually, I don't see the Brits losing the Maritimes -they had too big a base at Halifax, but....