I tried with 8bitdo wireless bluetooth adaptor + xbox one controller, and it got recognized as wiiu pro controller, but blackscreen on apply patch.
I also have a 8bitdo sf30 pro, but not sure how to use it with wii u.
Have you found a way to use the 8bitdo USB Wireless Adaptor? I tried to connect it with a XBOX one controller and it got recognized as a switch pro controller but immediately go to black screen after pressing apply the patch.