Vince Zampella has confirmed that any new game modes added to Titanfall will be available for free to all players. The new game modes will not be part of DLC, and as of now, there’s no news regarding DLC release dates.
@YaBoyZD3 Modes we release will be free to all, not part of DLC.
— Vince Zampella (@VinceZampella) March 25, 2014
Vince previously confirmed that new game modes are coming soon, and there’s no date for when we can see more.