One trending that I've been seeing in exhibitions are ink jet prints that are poster size that not mounted or not in a frame. I usually walk away from those shows feeling ambivalent about the presentation. I seen one in Chicago a few years back. The museum just used push pins on the wall and the prints are held by binder clips. To me, it just devalues the art. I'm pretty old school of presenting prints in frames and an over mat that is neutral white or slightly warmer that is archival. The more spartan presentations is like cooking a fine meal with great ingredients then serving it on a paper plate. That's my thought.