Looks like the Praise the Sun meme hasn't died off in the future.
The Litten plush is the most modern thing in this room, everything there would be ancient from D.VA's perspective. This may as well be the future world equivalent of someone who dressed their entire room in Beatles memorabilia.
I like the fact that she doesn't give any single penny while gaming when she is called by one of her best friends. Mei, maybe later my dear. She just got the best part of the game which is probably the final boss.
those are volumes of battle royale at the bottom of her bookcase. looking at the volumes on mine right now, and they look pretty much the same, but i'm not sure if that's enough of a connection to tag, so i'll leave it to someone else.