"If I could live for another fifteen years, I could surpass everything else I've ever done."
Those words were (supposedly) said by Walt Disney a few days before dying of a circulatory collapse caused by lung cancer in 1966. His company would go on to suffer a general malaise during the '70s and '80s, before the Disney Renaissance kicked off by The Little Mermaid.
Suppose he really did live for another 15 years, parting from the world at age 80 in 1981. How different would those 15 years and its aftermath be for the Disney Company and its competition? Would the extra 15 years avoid the 'Dark Age' Disney suffered, or only postpone it to happen during the late '80s and '90s? Was the Dark Age a direct result of the loss of Walt, or would it have happened anyway with Walt unable to stop it? Would Don Bluth and friends part from Disney in a similar way they did IOTL, or would they stay on-board?