...but all kidding aside, this is a team and objective based game. I don't think anything in the game is structured for a free for all. Just look at the often paltry amount of ammo you start with- people need to support each other to survive in this game and that's absent from a free for all mode. In terms of multiplayer content, the only thing they should ever really considering releasing is additional maps for the current objective-based game type. Maybe have a specific objective based on kills at the most but I don't see TDM working either. Pure CTF or control points might though.
This topic has been done to death, often regarding FFA, TDM, or other such game modes. The result is always the same. The community tells the OP, "NO."