Quote from: JOE SOAP on 18 February, 2013, 08:53:42 PM
Alan Moore and DC successfully did something similar in Whatever Happened to the Man of Tomorrow and Moore's Twilight of the Supeheroes proposal had a built-in get-out clause structured around the end of the DC universe and John Constantine meeting the love of his life. Not that any kind of time-shennanigans need be involved but it could be written as a stand-alone story with a certain long-term narrative/time-line ambiguity.
A very nice idea.