Hello,
The ideas I suggest would quite easy to implement on your side.
- Showing how many users are currently connected (disconnection could be handled either by checking an unconnected event (already existing I suppose) or by an timeout if the user didn't send the unconnected event)
- Showing a pie chart concerning the current platforms used, concerning the game version, the current screens (that would be awesome e.g. 10% are in the menu, 75% are in the main game scene, etc. ), ...
- Showing the user's global infos when our cursor is on the player's location
I have tons of things to do but I even draw a simple draft of my idea: