Welcome to ARK: The Chasm!
Waking up on The Chasm you will find yourself in an abandoned and destroyed ARK. This ARK suffered a fate similar to Aberration.
The past survivors on "The Chasm" pulled back their structures and cities into the Fertile Caverns and narrower cave systems to stand a better chance at defending themselves from the dangerous creatures and the hostile enviroment. Skilled Survivors may be able to still find some of the old ruins in the caverns of the map which they left before they went into hiding due to weird circumstances..
There is a huge chasm dividing the entire map, as if the ARK had almost been torn apart, bringing a new challenge for survivors to face.
It once seemed to have been a very lively ARK and populated by a variety of life forms. Some of them mutated strongly to adapt to the new living conditions. Others found new habitats, to which they had to adapt only slightly.
Goals/future of the map?
I love Aberration and the entire theme of it and this Aberration-themed map is supposed to bring together a fresh and new layout for the main biomes of Aberration like the Molten Element Region while also adding content from the other DLCs. Scorched Earth and Extinction both will have special areas (Scorched Cavern, Occulta City) that will bring most of their creatures to this map. All of these will be part of the Aberration-theme; glowing creatures in huge caverns.
The Boss Arenas will also keep that theme and bring some of the old bosses back to you within their own caverns that represent their "home" on The Island.