Minecraft Xbox 360 Update 12 is currently being tested for bugs, and once things are found to be smooth, it will go into certification.
Currently, 4J Studios are also finishing up work on Skin Pack 5, and word is the Wither won’t be implemented until a later title update.
In the meantime, while you wait, 4J has posted a picture of cats running around the place.
Sort of looks like my house, minus the heads on the table and there not being enough cats in the shot.
Update 12 will contain a build height limit change, new blocks, a jungle biome and trees, an Iron Golem, the aforementioned cats and more.