Nah I doubt it, The Dark Knight Rises page still posts occasionally with a character and a quote of theirs, just to remind people the movie exists. Would be awesome, but I wouldn't want them to touch it.
I'd like to see an Anime Prequel showing Cobb being introduced to the Dream Sharing program, meeting Mal for the first time, and they become rebellious and start to steal information from people's minds.
Give me your theory? One of the movies main points (perhaps the MAIN one) is that dreams, and cinema are as valid experiences as real life. This can only be read with the entire film as a dream. Also, each character is a jungian archetype, which further proves their all parts of Cobb.