I started a now world as you normally would in the latest snapshot. I advanced throughout the game normally, but when I got to the end and killed the dragon  the portal where you can see the credits and return to the overworld spawned as usual but the portal where you throw an ender pearl and go to the other part of the end to seek for end cities and all the fancy stuff just won't spawn, even in a totally different world in creative. And believe me I searched for it. I spent a whole hour looking for it but anything.