I don't know if Emoticons on Buildings will be the new norm, But for sure I find it funny as hell that we have a building in our little country called The Netherlands that has emoticons as part of a building.
But yeh, maybe emoticons become more main stream and part of our heritage. Some time ago I wrote a post bringing the true story of our friends in Finland who created some new word + emoticons for it. Somehow backed by their government. https://steemit.com/funny/@edje/kalsarikaennit-one-word-to-say-getting-drunk-alone-in-my-underwear-at-home
Emoji heritage could be a very interesting new normal... the Museum of Modern Art in NYC recently purchased the rights to the original set of emoji icons, here - https://www.moma.org/calendar/exhibitions/3639?locale=en
You maybe right :) WOW, MOMO!
Stickers will be the next things then; But there are so many around. LINE the messaging App became rich over Stickers, started in Japan, obviously (like the Emoticons).