Steps to Replicate:
1) Enter end of 1.8 world in 1,9 - with ender dragon not killed in 1.8.
2) Notice terrain is 1.8, no cages are present, but there is a portal in the middle.
3) /kill @e[type=EnderDragon], ender portal.
4) Remove DIM1 folder,
5) Re-enter end.

There will be the new 1.9 terrain, (obsidian pillars in circle), no bedrock portal or dragon.
Since the creeperface was removed, there is no way to spawn it either.