The 4K disc retains the track found on the previous Blu-ray rather than upgrading to an object-based format like Dolby Atmos.
To understand the value of the 4K Blu-ray, one must first understand how the film was shot. Christopher Nolan is a staunch advocate for film over digital, and The Dark Knight Rises was shot using a combination of 35mm anamorphic film and 15/70mm IMAX film. dark knight rises 4k blu ray