When Xbox one minecraft coming out?

For right now, there's no release date. 4Jstudios says the game is running on the Xbox One right now, but much work still needs to be done. Considering how long it usually takes for 4J to get stuff done, I'd say it will be out around March- June 2014. Thats a random guess, so don't quote me on that. If you want you can go to the 4J Studios Twitter page (google it) and they'll give you the most recent news, since they are the ones who are making the game.