In a recent video documentary from the City of Heroes developers they talked about a new option, Pratorean. While you can still gain redemption for your villain and have your hero fall from grace, the Pratorean allows you to simply walk the line from good to evil and back through your actions.

Unlike many MMOs where you must choose a side, City of Heroes now lets you determine your side through your actions by starting a new character as a Pratorean. This introduces the unique idea of having your actions determine whether or not you’re a hero, villain or
walk the fine line in-between. Similar to popular PC and console games including Fable II  and Infamous  the choices your make throughout the duration of the game with actually change how the game plays.

Keep an eye on GDN as we build our Pratorean and walk the line between good and evil.