A client that showed server ping, name and players in it would be amazing.

I'd also suggest a mode like conquest in battlefield.
Perhaps just a death match as well where you play to a set amount.

This would all be awesome.

It'd be great to also have stats tracked, as in time played, kills, deaths, captures, friends, assists ,etc.

A map maker would be amazing, and I know Ben said he would add it, but some way to support custom maps would be great as well to, perhaps the server list would have cc_mapname, next to a custom, and when you join it would download that map, and then official levels would have as_mapname.

Just a few suggestions!