I remember you!
Yeah KK went bankrupt at the start of 2012. The NST (Neocron Support Team) took over running the servers and creating new patches. Terra is no longer active, but there is a new server called Titan. Everyone had to start from scratch with new chars.
Also the game is free to play.
To answer your questions
- Anybody I know still playing? Get back ingame - it's free
- What's the community like? Get back ingame and decide!
- Average population? Have a look at http://stats.techhaven.org/en/graphs
- Phoenix still around? Most of us are doing other thing or playing other games, however some Phoenix members do drop in now and again.