pardon me...

[el cid]

I would say is still very active. Just visit some of the sites that host games like the ones shown on this thread

http://forum.shrapnelgames.com/showthread.php?t=40486

and you would see a bunch of games running.

[Vanguard X]

I just started a couple months ago, and it seems plenty active. New multiplayer games kick up every week it seems.

[mattyburn7]

Yep. I just started playing MP in January and have probably seen about 20 games involving noobs get started. Pretty good clip.