One of the big E3 games that have gotten some more information was Metal Gear Solid. Although it’s not Metal Gear Solid 5, Peace Walker is set for the PSP. The game itself takes place in the 1970s which is ten years after MGS3. I will admit that graphically it’s not PS3 caliber, but I can imagine this game being so big that it would also make it to the PS2.
Here are some images from the E3 Trailer.