Today Konami announced that both DLC episodes for Metal Gear Rising: Revengeance will be available for free on the PlayStation 3 and Xbox 360. These episodes include a backstory for Jetstream Sam and another adventure where you take control of the Blade Wolf. Each DLC adds about an hour of gameplay and also includes some trophies / achievements.
In addition to dropping the DLC, you can now purchase Metal Gear Rising: Revengeance for $30 dollars. This basically makes the GOTY edition $30 dollars, which is a steal for a game of this quality. However, keep in mind that the Cyber Ninja DLC, VR missions and Metal Gear Solid 4 Raiden costume are still in limbo or paid DLC.