The content will begin with the addition of two 2 new general multiplayer maps: Glitch and Relic (no further details on the maps were shared).
The multiplayer maps will then be followed by a new Titan, which also has no further details.
Today, developer Respawn Entertainment provided a Titanfall 2 content roadmap for the next months, aka for the content that will be dished out between April and June.
Respawn has said it will share more details on all of the content as said content gets closer to release.