Senior franchise marketing manager Gary Clay said that the third-person shooter is being considered as "a service", with free content updates responding to community requests.
"We haven't announced what the content's going to be, but we're looking to expand the gameplay experience significantly," he told Digital Spy.
"We will be listening to the community for the types of content they want to see, and then we'll continuously update that.
"One of the things that we're going to be doing is updating our in-game billboard on the menu screen, a dynamic billboard that we can [use to] communicate with players."
When asked whether maps or modes were included in the plans, Clay responded: "Anything you'd expect from a third-person shooter.
"Expect a big PvZ spin on everything, don't expect the standard elements you'd get from most games. It'll be focused on humour and things that are very different."
Our review of Plants vs Zombies: Garden Warfare: Fun for a while
Plants Vs Zombies: Garden Warfare will not launch with micro-transactions.
A hands-on video from EA recently showcased gameplay footage of its 24-player 'Gardens and Graveyards' mode.
Plants vs Zombies: Garden Warfare arrives February 27 in Europe and February 25 in North America for Xbox 360 and Xbox One, with a PC version this spring.