I'm so happy something like this exists. I absolutely love TRON and anything that relates to it. I was really sad that Disney didn't push for a third movie.
Has that been canned? The cartoon TV series[1] was amazingly deep considering it was a kids show but that was cancelled after the 1st season because Disney wanted to focus on a 3rd movie. From what I read, those involved with the cartoon weren't happy (and neither was I, for that matter).
[1] https://www.imdb.com/title/tt1812523/