"TRON 3" Details!

Joseph Kosinski, director of "TRON: Legacy" was discussing the possibilities of "TRON 3" and he also said that he thinks Disney are waiting to see how the second film does when the DVD is released. So basically "TRON 3" will happen if the DVD sales of "TRON: Legacy" does well.
He was discussing the plot details that he intends to have in the third film, "We're working on the story right now. Once we get a script we're all really happy with, we'll take it to the powers that be and see if we can go back to the grid. I think we will pick up with where Tron: Legacy left off with Quorra [Olivia Wilde] in the real world and what does that mean and the possibilities it opens up for the next chapter. It's that relationship between the two of them that's the next step."
Kosinski also discussed having Cillian Murphy's character returning in the next installment. His role is to be much bigger than the last film, "Dillinger [David Warner] was a really important part of the first film and felt like an easy way to continue that storyline and thread to have his son in the new movie. That way you have people ask those questions of what the Dillinger legacy is in the world of Tron. We didn't want to ignore it completely and it leaves a really nice springboard for some intertwining development for the next film."