The Colts definitely belong in the North, not the South, or the East or West for that matter. First lets go back 29 years ago when the Colts relocated from Baltimore. They should have been switched from the AFC East to the AFC Central. Revisionist history 1984-2002 AFC:
East: Baltimore('96-'02), Buffalo('84-'96), Jacksonville('95-'02), Miami, New England and New York.
Central: Buffalo('96-'02), Cincinnati, Cleveland('84-'96,'99-'02), Houston-Tennessee, Indianapolis and Pittsburgh.
West: No changes.
The NFC was even more convoluted than that: Saint Louis-Pheonix-Arizona and Dallas(still there?)in the East? Tampa Bay in the Central? Atlanta and Carolina in the West? The NFL has had a problem with geography since 1953(Baltimore Colts in the NFL West? Chicago Cardinals in the NFL East?).
Revisionist history 2002-present AFC:
East: Baltimore, Buffalo, New England and New York.
South: Houston, Jacksonville, Miami and Tennessee.
North: Cincinnati, Cleveland, Indianapolis and Pittsburgh.
West: No changes.
NFC: Switch Carolina to the East and Dallas to the South.
Future realignment-no more conferences-just an 8 division league:
Capital: Baltimore, Carolina, Philadelphia and Washington.
Southeast: Atlanta, Jacksonville, Miami and Tampa Bay.
Century: Cincinnati, Cleveland, Detroit and Pittsburgh.
North: Chicago, Green Bay, Indianapolis and Minnesota.
Central: Kansas City, New Orleans, Saint Louis and Tennessee.
Southwest: Arizona, Dallas, Denver and Houston.
Pacific: Oakland, San Diego, San Francisco and Seattle.
Playoffs expanded to 14 teams. The top 2 division winners receive 1st round byes while the other 6 division winners, seeded 3 thru 8, host the top 6 wild cards, seeded 9 thru 14, regardless of division. All 4 teams from any 2 divisions could all make the playoffs in the same season. Any 2 teams from the same division could meet in the Super Bowl.