The world of Tron has always had excellent potential, even growing as advanced computers became more and more apart of people's everyday lives. I had long thought that Tron could truly have been Disney's Star Wars (in fact, the Sith Inquisitor on SW:Rebels looks a whole lot like he could have been on of the MCP's lieutenants, he even wears his lightsabre like a T:L era Identity Disc)
Disney was so very much committed to Tron: Legacy, but then so very "let's dump this ASAP" when it came the follow-up animated series that I did not expect to hear of production on another Tron movie after it was announced Disney had bought Lucasfilm.
So, I'm pleased with the news, I hope a new Tron movie really does go into production this fall.
Who knows what evil lurks in the hearts of men?