I would kinda expect the time you serve in Juvie is the segway to going back to Igor, and traveling that "Final-final dungeon" where you take on the evil that pulled even more strings than before.
We already know what it was. Her fathers notebook. She was driven by her belief that her father was murdered by his superiors when he got too close to the truth.
That was the setup item, though. While the notebook is a fantastic idea, it was also revealed that it was set up to be partially visible because the treasure was a hoax from the start. So really, we don't truly know what it was.
there won't be an update. there will be dlc instead. new quests, weapons, socials links will probably come out as dlc. did you guys forget this is 2017?