Quick feedback on 5.2:
Most people will not remember the initials Franziska gave you at the end of day 4 when loading straight into day 5 (it's been a while since 0.4 released). There is also as far as I can tell no item or anything that will remind the player of the initials. I had to look into the walkthrough to find them.
You should address this for the public release.
Otherwise, the new content is very good. Looking forward to the last day.