Moore spoke briefly about how the character ultimately ended up not making into the first film...
"I can't specifically remember why that didn't happen," Moore explains. "...Of course, with a sequel, I'm hoping that we can find a way to see Tron himself in that movie."As well as Tron, there is also a slew of other video game heroes and villains that I'd love to see make it into the sequel.
Source: ComingSoon