!!! SPOILER !!!
DON'T READ IF YOU HAVEN'T PLAYED THE GAME BEFORE
I wonder if other characters' main menu pictures will change like Sissel's did after completing his route, and then after finishing all 3 routes, we're going to get the final route or (smth like that) of Jinny's to free her from that REPEATING nightmare. Or we'll get our own route, because we literally don't know ourselves that well as others, and we'll uncover our secrets too. Perhaps both of these routes will be available in any order if not both.
I'm simply hypothesizing, but it sounds pretty cool in my opinion.