Not sure if it is relevant but I have plans to implement Client/Server inside X360CE application, which will allow to create Virtual Controllers which are physically connected to different PC or not real at all (emulated on mobile app screen). Basically:

One X360CE application acts as a client, you will have field
Remote IP Address: [ ] Remote Port: [ ]

Second X360CE application acts as a server, you will have option:
Listen on Local Port: [ ]

Insert/Update/Select/Delete commands, could be used to create and update remote virtual controllers. and states could be sent by using small TLV UDP packages. I just have to change how current joystick state is retrieved so that I could reach 1000Hz and super low latencies via Internet.

Just not sure how popular it will be and I have limited time due to other responsibilities.

thanks @EJocys but before receiving your reply I was digging on the Windows Devices HID API on WDK (Window Driver Kit) sources , unfortunately there is no sample for HID over WiFi yet
right now I'm trying to find a code to bind wifi link to the HID emulator (like ViGEm) . As I almost prepare server side (ESP8266 with websocket server ) I look for code to establish websocket listener on emulator
I might add, I found this site that made similar software ,but unfortunately it is not opensource to modify it