Ender Dragon

Enderdragons are a new mob that is planned to be included in a future update, appearing in The Ender. Not much is known about them, other than they are part of the "Ender" creatures. They currently have only been photographed with a blank or placeholder skin.

Trivia:

 * The name "Enderdragon" was first made known through a tweet by Notch reading "raqreqentba", which could be decoded using ROT13, translating to "enderdragon."