It's time to abandon the current conference/division alignment, as I have proposed expansion to 40 teams aligned as such (expansion teams marked with *):
Central: Chicago, Columbus, Detroit, Indianapolis*, Kansas City*, Milwaukee*, Minnesota, St. Louis
East: Boston, Buffalo, New Jersey, NY Islanders, NY Rangers, Philadelphia, Pittsburgh, Washington
North: Calgary, Edmonton, Montreal, Ottawa, Quebec*, Toronto, Vancouver, Winnipeg
South: Atlanta*, Carolina, Dallas, Florida, Houston*, Nashville, New Orleans*, Tampa Bay
West: Anaheim, Arizona*, Colorado, Los Angeles, San Jose, Seattle...