I'm loving that name. Works for both Security and Resistance.
It should totally follow BOTH the Security and the Resistance, perhaps after a few years after the events of Brink. I wonder how that would work, playing two factions that aren't in reach of each other. Perhaps one faction goes to the other for help?
Maybe it wouldn't be so Security focused, as in both endings [Spoiler Alert] the Security stay and in one the Resistance leave [Spoilers Ended] so maybe (As in the thread that came up with the name Brink: A New Horizon) the mainland is a wreck and it has the Resistance and a big gang fighting for control.
I dunno though, looking back on my post it sounds quite awful, if there is a Brink 2 (Whatever name it may have) which I highly doubt, I'll leave it to experienced story tellers to make the setting