I know that posting this increases the chance of getting a few (or a bunch?) of "Brink sucks!" replies but I'll carry on anyways.
For those of us who like Brink, the new DLC is out for free on Steam. Should bring the population back up to some good numbers at least for a month or two. Right now most of the KDR players have jumped ship so the matches I have been in tonight are pretty damn competitive and rather pleasing.
Edit: Now free to play this weekend through Steam.