Disney decided to put the brakes on development of “Tron 3,” the latest installment of the cult favorite that originated in the 1980s, because the studio could not find a place on its crowded slate as it looked all the way into 2018, according to an executive at the studio.
The team that had been coming together to make the film got word Friday that Hollywood’s top studio would not go ahead with the film in the foreseeable future, despite the franchise’s popularity and the fact that the 2010 version “Tron: Legacy” made nearly $400 million worldwide at the box office.
http://variety.com/2015/film/news/tron-3-cancelled-disney-1201508421/