Well I think one thing that is undebatable is that it's happening in Elena and Lily's room. Theirs is the only desk that has multiple panels connecting under the desk and shelves above the desk and is remotely that colour.
- Riona & Cammy's room the desks have no shelves.
- Mel & Sarah's desk is way too dark and has different handles on the drawers (but yeah, someone is moving their cactus around)
- Arieth & Ash's room is just cheap shit desks with no shelves.
- Quinn doesn't even have a desk.
- Sage's desk has no shelves.
- Josy and Heather's desk has completely different handles and the panels under the desk don't run the whole length of the desk (also it looks like a different type of wood or stain).
- It's not Maya's desk back at her dorm.
- I can't see it being Jill or Bella's desk.
- Elena and Lily's desk matches everything although the colour is a little off.
Sure nothing's happened with Elena yet, and it's more than long overdue, but my money is on Lily. Lily's arm tattoo is on the right arm, but it's the upper arm, and that's not visible in the photo, so nothing discounts her yet, and it seems that she has designs on the mc, and they never reached 5th base in their last encounter, so it the obvious progression.