As you may have noticed, access to the End dimension in both the Wilderness and Wastelands is currently unavailable.
There are 3 reasons for this:
A bug exists that, once you enter, will not let a player leave the End.
An event is planned where the End will be opened and the community will fight the first Ender Dragon as a group.
How to handle the Dragon Egg has not been determined, but we have a few options:
Never introduce the Dragon Egg into the server's economy
PRO: Players will not fight and rivalries will not be formed over who has the Dragon Egg
CON: No one will be able to have a Dragon Egg, let alone complete all of the advancements.
Let a Player or Nation keep the Dragon Egg for themselves
PRO: The Dragon Egg is able to exist on the server
CON: This would make the holders of the egg a massive target
Give everyone a chance to get one Dragon Egg each
PRO: Everyone is able to obtain a Dragon Egg, and complete the "Next Generation" challenge
CON: Causes major, and possibly rapid, devaluation of the Dragon Egg
Make it so that the last player that hit the Ender Dragon before it dies has a chance at getting a Dragon Egg
PRO: Everyone is able to get a Dragon Egg if they work for it
CON: Causes devaluation of the Dragon Egg, but to a lesser extent than above
The End dimensions WILL be opened some time in the future, specifically after Eternal Realms leaves Public Beta. When this will happen is currently not set in stone, and is to be determined as both in-game content and Forum content are developed and written.