I thought originally that it took place after it too, but the devs in an interview came out and said it doesn't really follow from the last DLC. So, that threw me for a loop chronologically. But given Rockwell clearly seems to have a vendetta against us, I thought logically it had to at least be post Aberration.
Given their statements that it didn't follow chronologically, I had originally assumed the simulation on the "colony ship" was some alternative escape means for humanity. One being the arks and the other the simulation on a colony ship to another world. But they seem intentionally vague. The "alternative survival mechanism" doesn't seem to make sense if you are the same survivor, as you were on the arks.
This is so bizarre. To me, everything made logical sense up to Genesis. Then it got weird. I hope Gen part 2 clears stuff up. It could always be the case that the devs in the interview mispoke about the chronology of Genesis. Or were misleading to obscure Gen 2 or something. IDK.