The regions that fairly describe what you said:
-Beauce (south of Quebec City, could join the adjacent New England states)
-Outaouais (opposite side of Ottawa River, could hook onto Ontario)
-northern Quebec (mostly Cree and Inuit, separate northern territory?)
The west end of Montreal is more English as well, but they are ULTRA-liberal. Keep them out of the Union.
However, referendums should be held in all the other areas, except the Montreal-Quebec City axis, and a majority vote should prevail, except when they would otherwise be isolated in one way or another. Language is not a real issue, after all there is no real official language in the US.