"We are going to have maps added, and we're trying to give players as much of a varied look at things as we can so that is definitely a possibility," she said on the eve of the game's UK launch.
Respawn has confirmed plans to release three paid Titanfall DLC packs, each of which will contain new maps and other yet to be determined content.
While Heppe didn't rule out the possibility of adding to the game's three existing Titan classes, she said doing so would be a massive undertaking.
"In order to [add a Titan] it takes so much balancing to make all the Titan abilities work with each other, and then against pilots. It's a huge undertaking. Originally we just had the Atlas titans and then the team refused to add in the rest of the Titans until we were all sure that that one fitted perfectly with everything else in the game, so... I'm not announcing any new Titans right now."
Respawn's debut game is now available on PC and Xbox One worldwide. The Xbox 360 Titanfall release date is March 25 in the US and March 28 in Europe.