Earlier this morning Ant-Man director Edgar Wright posted the above picture on his blog with a little caption that simply said, "Homework."
The image comes from the now cancelled Marvel animated series Avengers: Earth's Mightiest Heroes. The episode it comes from is "To Steal an Ant-Man," and the story features Scott Lang steeling Hank Pym's Ant-Man gear and using it to be a criminal. So Pym hires heroes for hire to get it back.
From a previous interview a few years ago we know that Wright was looking to involve both Hank Pym and Scott Lang into the story. Marvel Studios president Kevin Feige has also called Ant-Man a heist film, so it looks like this is a big hint of the direction they are taking the story!
The movie is set to be released on July 31st, 2015!