The trailer was created by Hat Films at the behest of 4J Studios and highlights many of the new features that are coming with the latest title update for the Xbox 360 version of Minecraft. This includes the long-awaited arrival of The End along with the Ender Dragon plus spawn eggs, Nether Bricks and more.
4J Studios recently released two images that show detail some of the changes coming with the update but expect to release the complete list of changes in the next few days. When the developer does release the list, that will be a sign that TU9 has been sent to Microsoft to be certified for release. The update should then be distributed not long after that.
You can check out the Minecraft: Xbox 360 Edition TU9 trailer in our video gallery. One thing this video does confirm that 4J Studios hasn't announced yet is the addition of a cage around the Nether Crystals in The End. This is to make it a little more difficult to take out The Ender Dragon and was something that 4J Studios previously said they were testing out.