Well, as of some point today, a new portion of the prerelease was added. Ender dragons are no considered the games final boss. There are flaming pillars in the end dimension and they heal him, you destroy the flames then kill him. You basically get more experience than you know what to dow tih and a fountain appears with a dragon egg in a pillar in the center. You leap into the pillar and the credits roll. A weird after-game story shows up and is a bit interesting. You then spawn back in your world at the original spawn location. Good luck finding your base.
inb4theresalreadyatopicforminecraftrelatedthings