AES42 is a new version of AES, and in addition to communicating via AES or S/PDIF, like normal AES, supplies phantom power so that it's possible to use digital microphones.
Please, please, please implement this.
Finally, to be able to have quality Analog/Digital conversion in on camera shotgun microphones with Digital Mics such as the Neumann KMR 81D, or the Schoeps SuperCMIT 2U. They're amazing mics. Please support them.