The buildup for this song is huge, so I'd say they're going to put the song in as many places as possible. Surely there will be a single, and I'm sure it will also be on the OST (in several incarnations), and it will be echoing through the streets from Shibuya to Ginza, and it will be all over the television.

They compared it to Japan's "My Heart Will Go On," from Titanic. Do you guys remember what it was like when that song came out? You could NOT go anywhere in public without hearing that song over and over again. You weren't even safe in your own home, it got so much exposure.