News on wiimote-audio for older wiimotes?

[LAMeduck]

So, according to this video; https://www.youtube.com/watch?v=o3JkJjvB0ZY speaker data works great with a Wii Remote Plus. I have an older model without a built-in MotionPlus. Speaker data in Mario Galaxy 2 sounds like a distorted mess. In the description in the video above it says that standard wiimote audio "will be looked into in the future." Any news? Something one can do?