Aether and Nether should be a "dream" and "nightware" world too

Maybe, after visiting at least the nether or the aether, the player will have respectively dreams or nightmares of those two dimensions.

-> Possible loots, fights, and quests on those oniric worlds.

Those worlds would be generated in a temporary memory, which means once players stop their dreams (die in their dreams i.e.), they loose this world... 

... or so they...

Could it be possible that the "thing" they saw, was in reality a way to go back to the same dream, ... ... the same nightmare too (even though it wouldn't be really joyful to go back there, right ?).

-> Possibility to find the "key of [name of the dream/nightmare]", to unlock what was "made", during the sleep in this temporary world.

------------

Please let me know if it's possible that this aether/nether update is possible with this idea.

Thank you :)

Skiller78