I just got back from a two week trip to Japan. Tokyo 2020 is everywhere! I had seen the logos upon departing the airport, in the harbor area of the Odaiba, outside the 1964 Olympic venues, as well as a countdown that was scrolling on the side of the famous Asahi Brewing Company building. There is a store selling official merchandise in Narita airport. I snagged a hand towel, pin, and keychain. Very reasonably priced I might add. I also saw a Tokyo 2020 sign in the Kyoto train station. It was very exciting to see the country embracing the games. I can't wait to return for 2020!
(if someone can tell me how the attachments work ie: how to add them to my account- I might be able to put up a few photos I have)