NYC to Montreal is not part of the NEC; the NEC is solely the portion from DC to Boston.
That said, the NYC-Montreal and Boston-Toronto lines are lines that absolutely should be dedicated high-speed passenger rail in addition to the NEC, but they are not even dedicated passenger rail lines at the moment let alone proper 220mph HSR lines.
That said, the NYC-Montreal and Boston-Toronto lines are lines that absolutely should be dedicated high-speed passenger rail in addition to the NEC, but they are not even dedicated passenger rail lines at the moment let alone proper 220mph HSR lines.