Printer, staff training, and Alice placeholders have been there since I started (.12). Spy was mentioned, but have not seen a related action.
Yes. I'm not on Discord, but got the impression that staff training was planned to be in this last update. Not sure if Maxine was done first because of Patron voting (that is how the update order is decided) or because dev was unable to work on the game for a couple of months and Maxine's update could be done a bit quicker by putting each costume snapshot on the same poses in a couple of places. Everything will come in good time.