The official Battlefield blog apparently accidentally left a door open that allowed fans to peek in and grab a few screens from Battlefield 4. That's the story going around the Internet anyway. It's unclear if these are legitimate screens, but they certainly look the part.

We should find out more about Battlefield 4 tomorrow, when Electronic Arts is promising a "first look at gameplay".

See the screen shots here: http://www.gameinformer.com/b/news/archive/2013/03/26/rumor-battlefield-4-screens-leak-online.aspx