Titanfall 2 will not have a season pass, instead all future maps and modes will be free updates for all players.
Unlike almost every other shooter that has, or is due to launch this year, EA and Respawn have opted against charging for multiplayer DLC, instead giving it away to players for free. This will start with the Angel City map, which is a remaster of one of the maps from the first Titanfall.
This is an interesting move, as almost every shooter now launches with a season pass of some description. Battlefield One, Call of Duty: Infinite Warfare, Doom and countless other shooters all have season passes that include multiplayer DLC. However this ends up splitting the community, as some players who do not have the DLC are unable to play with others who do.
While there is no season pass coming for Titanfall 2 anytime soon this doesn't mean that there won't be any paid DLC. Chances are that at some point in the future there will be some kind of DLC, and with Respawn clearly against splitting up the online community it will probably end up being single player focused DLC.
This means no splitting up the community and it all starts with the legendary Angel City map, remastered from the original Titanfall,” said Respawn in a post on the Titanfall website. This means once you've purchased Titanfall 2, your investment includes a full single player campaign, the full multiplayer maps and modes, and long-term support with no hidden costs. You can pre-order the game to play 3 days early, but it will never cost you extra.”