Not yet, but a project has been launched by SMPTE to add immersive audio to the Interoperable Master Format (IMF). This project is titled 'IMF Immersive Audio Bitstream Level 0 Plug-in' and is assigned to Technology Committee 35PM. The project is based on the IAB (immersive audio bitstream) specified in (draft) SMPTE ST 2098-2, which is also under consideration by SMPTE project and includes support for Dolby Atmos.