We surely will follow the story of Helena Parker and Rockwell journey from SE to the 'control center' station which Abberation probably is. Or was until it got destroyed. "The transporter that can take us back to the "control center" station is in the ruins of another city, south of the mountains." - Helena`s note #29 from SE.
And my speculation is that Rockwell`s obsession of element (or Edmundium how he calls it) may have lead to the devastating TEK war on that ARK that brought it to its current state. "Meanwhile, I shall unlock the secrets of the most extraordinary element in the universe right under her nose!" - Rockwell`s note #30 from SE.
There is also Nerva and Mei-Yin Li who disappeared during their ascension. And while the notes may have a clue that they both fought on that control station - it is not clear if they both are dead or alive. Helena did mention her hopes that Mei is still alive and looking for her in her SE notes while Rockwell definitelly sees Nerva as a leader worth ruling the ark.
As for the type of ruins that may be there on the Abberation ARK - i doubt they will be any TEK type. But if my theory of Rockwell`s involvement into Abb ARK destruction is true - this may very possible be it - TEK tier ruins. Rockwell did turn from an arrogant researched into an obsessed element-hunter that didn`t hesitate to poison people standing on his way. "As soon as the first group of Burning Phoenix warriors succumbed to their poisoned feast, I stole away into the night, Edmunium and artifact in tow." - Rockwell`s note #24 from SE.