I woke up today in a mood to do science. Distracted from my recent findings regarding the secrets of antimatter production, I glanced at the Ender Explosives with intrigue. Setting one off with not so much as a hypothesis as to it's effects, I found myself in The End. While not describing The End as alien would do it an injustice, It was a familiar place to me, as it should be to most others. I then found myself wondering what the explosives would do here. The results of this explosion were more interesting. Rather than doing nothing, or sending me elsewhere, The End ceased to exist.
To elaborate, the explosion shunted me off about 100 meters away, all blocks vanished and all entities were frozen in place, though still animating. Strangely however, the nonexistant blocks seem to still repel, though attempting to stand where they should be does not end flight. Also worth noting, the minimap has become fixated, moving causes the mark to jitter but not move, while the coordinates work as normal.
The results are fully reproducible and nonpermanent. Exiting and reentering the world restores the the end around you, and setting off the explosive puts you back into the nothingness that was once...only slightly less empty.
Images provided for scientific posterity:
Note the emotional distress of the Endermen to my 3rd use of the explosive
silhouette of the vanished land
silhouette and land vanishing as I approach
Crystals and Enderdragon suspended in the nothingness
the natives confused about their sudden loss of land
Note: This is not a bug report. I am not requesting help or a patch, I just felt like sharing the results of my experiment. It does not seem to cause harm to the game and there is no reason or benefit to reproduce it. The devastation this may cause in multiplayer has yet to be researched however, more testing required. My findings shall be reported here.