I played like 300 hours launch to Nov, but stopped mostly because of no more double kill counts on weapons going away. I was working on leveling my Nagant 1895 pistol, but it sucks getting 100+ kills to level especially when your looking at one level every 3+ matches and most of the servers being realism, so very few classes having a pistol (only thing bad about realism at least when I want to level a pistol). Also, its holidays and AAA games/steam sale are coming out in droves, played portal 2, skyrim, AC:R, Dungeon Defenders, Orcs must die, and Bastion since then.
I'll prob be back to play some when the new map comes out and again when major mods/map mods are released.
I think if TWI gets a lot of the performance and gameplay bugs fixed, releases some new content and modders release some new stuff. We could see a decent RO2 resurgence in the spring/summer when people get tired/beat their AAA Holiday games and there is a gaming drought of releases then. People will start looking back to their playlists and trying out a game that was buggy initially like RO2.