PlayStation All-Stars Battle Royale will receive characters and new stages via downloadable content.
Speaking in an interview with the EU PS Blog France, Superbot community manager Daniel Maniago said, "There will be additional characters, as well as other forms of DLC levels," he said.
Unfortunately he didn't go into much more detail, but it seems like Sony is far from finished when it comes to adding to the final line up later down the line.
PlayStation All-Stars is out later this month. You can pre-order your copy below.