Minecraft: Xbox 360 Edition developer 4J Studios has confirmed that update 9 for the game will not see a release in February.
@zorphio There’s lots more work to be done before TU9 goes to Cert. It won’t be out this month.
— 4J Studios (@4JStudios) February 7, 2013
Update 9 will introduce the End and Enderdragon to the game.