[benwaggoner]

Personally, I think xHE-AAC is going to be used a lot more than Opus ever will, particularly for commercial use. It outperforms Opus, offers seamless bitrate switching, and is broadly available in AAC licensing. Opus is an excellent codec, seamlessly bridging between low bitrate speech coding with efficient perceptually lossless encoding.

The OEMs have many years of familiarity with Fraunhofer and Via licensing, and I expect device classes that support AAC today to support xHE-AAC in the future.