There is no one working on the 2W, i ask here because it is similar enoght to the point the same image works without issue.
For what im doing i cant use the expansion board, and i dont have it either, the problem is that there is no pinout of the expansion interface, otherwise i would have tried to plug in some small flex to get the audio signals.
Raspbery PI Zeros can get audio out via PWM pins, i think it is using an overlay.