According to the new intel in Astra Malorum, an unnamed event caused an "explosion of creation" which presumably is just the aftermath of Tag der Toten seemingly creating things in the Dark Aether when its really just the old Aether being transported there.
But it could be something entirely different as we have no clue what dimensions the new crew are really from, or whether this event could be Shem's "shattering space-time" that was mentioned on Shattered Veil, especially since he is mentioned multiple times in Astra.
Thoughts? Is it an illusion of creation made by the Aether dimensions falling into the DA at different points in time? Or something bigger?