#1> You're probably right. Though I guess it couldn't hurt to flesh out my idea and possibly present it for "expanded universe" type book? Everyone I've mentioned this too seems to want to SEE this idea manifest into something that's even beyond my own idea.
#2> I think it make an awesome movie. But yeah. Disney would probably dumb it down too much.
#3> As far as I can tell, Canon is as Disney sees it and not Lisberger (sadly). Though I don't know if he had anything to do with the game TRON 2.0 and as things go, "the movies" are what is canon. Though from what I read TRON Evolution is supposedly cannon and takes place in between TRON and Tron Legacy. ---I'm considering buying the game, but a lot of people are saying it controls like shit. I sadly never had the opportunity to play 2.0 Personally (speaking only for me) Canon concerning movie IPs is usually what a movie is showing. Books in an expanded universe is just that, an alternate continuation. And if one has to PLAY video games to understand the overall scope of the IP then that's just bullshit.
If I still rode a motorcycle (I haven't since my accident in 2002 ---made the mistake my father told me not to make: "Get back on it tomorrow, if you don't do it soon you never will... he was right) I'd buy that fucking thing in a heart beat, but only if it also lit up in bright blue neon. Yes I'd be the dork doing 110 lit up at night.
Strangely enough there's a guy in San Antonio who has custmoized his sports car to light up in blue neon along the entire frame of the car and even the damn headlights look like what the light cycles jet walls look like! Totally bad ass. Car has the grid patterns along the doors and everything. If I could have caught up with the guy (I drive a Pathfinder these days) I'd have gotten a picture standing next to it or something. I've seen this person on the freeway three times in the last 2 months.