I have a feeling the days of patent encumbered video codecs will come to an end soon and be replaced with some kind of autoencoder, or at least the decoder part. It should be possible to match or exceed the compression achieved by H.265, although the decoder would probably consume more energy and cost more. The cool thing about autoencoder compression is that at high compression rates it'll still look like a high resolution image, it'll just be of the wrong scene!