We first heard about Disney’s intentions to make a sequel to Tron: Legacy back in April 2010 when they re-hired writers are Edward Kitsis and Adam Horowitz to get started on the next film.
When Legacy eventually came out in December a sequel looked uncertain do to a soft opening weekend, but with a final gross of $400 million (+ DVD/Blu-ray sales) it looks like Disney is moving forward with a third Tron film.
According to THR David DiGilio (Eight Below) has been brought in as Kitsis and Horowitz are busy working on TV show Once Upon a Time for ABC. Whether a Tron: Legacy sequel gets made is not certain though, as it “may rest on the performance of Tron Uprising, the animated show which will air on Disney XD next year.” $400 million may have been a profitable number, but if the ‘brand’ isn’t strong with kids (who buy merchandise etc.) then a sequel might not be worth it for Disney.
Director Joseph Kosinski has previously said he’d love to return, but his next movie will be Oblivion with Tom Cruise which is expect to start shooting later this year, so if he is returning to direct production on the sequel won’t begin for a while.