They're touched up PR shots but you can tell the game will look fantastic. I'm very interested to see how it runs on next gen consoles, BF3 was one of those games you could tell just stretched the old ones past breaking point.
edit: Proper high res shots here
http://blog.battlefield.com/wp-content/uploads/2013/03/crashsite_1920x1080.jpg
http://blog.battlefield.com/wp-content/uploads/2013/03/close_1920x1080.jpg
http://blog.battlefield.com/wp-content/uploads/2013/03/construction_1p_1920x1080.jpg