PC question - more provinces for the Confederation of Canada

I've been doing some reading which is in no way related to a TL I am totally not writing, and came across proposals to split Canada East (formerly Lower Canada) into three provinces in the period leading up to the formation of the Confederation of Canada - the province of Montreal, the Eastern Townships and the rest into a province of Quebec.

Any ideas on how plausible this is?

Also, could Canada West (formerly Upper Canada) be split into, say two (or more) provinces as well?
 
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