I'm planning to extend the server with some stats collecting system. Every game on the official server would be recorded, and a page for each replay would be created with stats about players, weapons used etc.
Additionally there would be statistics that span all games and give us information of how often weapons are used, and how effectively they are used, what game flags are used, …
By selecting certain "qualified" games, there can also be an Elo-like(!) rating and ranking system, such as RTS games like Spring/Zero-k use (see for example http://zero-k.info/Battles/Detail/66002 ). I know that plain Elo doesn't make sense for changing teams, but there are modifications that make it feasible. This would allow a competitive gameplay for these certain selected games. If not everyone wants such a thing maybe one could open a new room with a "ranking-enabled" flag, that specifices if the game counts towards the players rating.
Achievements will also be possible, by collecting XP in various ways and unlocking certain stuff with it (new hats, etc.).
I made this posting so we can discuss some details, what statistics you would like to have and what possible achievements would be.