I have been waiting for this a very long time. DJI announce a new DJI Mic 2 hot shoe adapter that works on Sony cameras. It allows you two things:
1) Direct audio recording without the 3.5mm cable
2) Powers the receiver
For now it has been announced in China only (DJI China store). Not sure when it will be available elsewhere.
Specs:
DJI Mic2 Hot Shoe Adapter
199 yuan
Compatible products: DJI MIC2
Compatible with Sony MI interface
Camera recording possible without 3.5mm cable
Powers DJI MIC2 from camera when using adapter
Weight: 13g
Size: 22.2 x 33.1 x 38.8mm (when stored)
You can buy the DJI mic 2 at Amazon US&EU, BHphoto, Adorama.