Well, there probably won't be much anime in the Olympics, but knowing how Shinzo Abe is pushing "cool Japan", there will definitely be some anime, though I'm guessing it's mostly going to be Miku and Shonen Jump stuff, because that's what's popular around the world.
Of course, you do realize that this is still like, 7 years from now, and what's popular now isn't gonna be what's popular 7 years from now
