"In a recent blog post on Playstation.Blog, Brandon Laurino of Konami Online wrote the following:

“Stay tuned for updates in the coming weeks, as the one-year anniversary of the launch of Metal Gear Solid 4 approaches, we’ll be revealing even more awesome stuff to celebrate!”

Metal Gear Solid 4: Guns of the Patriots was released on June 12, 2008. The one year anniversary coincides with E3 2009, which takes place from June 2nd to June 4th."