Had the Meach Lake Accords of 1990 or the Charlottetown Accords of 1991 failed, there would have been a movement to get New Brunswick, Nova Scotia, Prince Edward Island and Newfoundland brought in as four more states.
Canada acceding to this confederation, and adjoining in the measures of the United States, shall be admitted into, and entitled to all the advantages of this Union; but no other colony shall be admitted into the same, unless such admission be agreed to by nine States.
Articles of Confederation : March 1, 1781