If you watch the entire clip, you'll notice that the background music for the KH3 section of the clip features a music switch, to a song that I think is brand new. I'm not taking about "Rage Awakened" during the attraction flow scene, but rather the music playing while showing clips from previous games. Take a listen below:

 

https://www.youtube.com/watch?v=A-8B4bvenhA#action=share

 

What do you guys think? Is this a battle theme for Kingdom Hearts III?

It sounds like a world theme.

 

Could be for Tangled.

It definitely sounds like a Kingdom Hearts music track so it could be a new theme for KH3.

 

But, it REALLY reminds me of this track:

 

It sounds like a world theme.Could be for Tangled.

It's definitely for Tangled, Twilight Town, or whatever world is in the prologue with YMX and YME. Personally I think it's a new battle theme for Twilight Town.

It definitely sounds like a Kingdom Hearts music track so it could be a new theme for KH3.

 

But, it REALLY reminds me of this track:

 

It reminds me of that too! But I don't think they're the same songs. The other one is much more light hearted.

Huh, it could be. I'm not even sure if Rage Awakened was in there at all. It's hard to make out, but if those are two separate tracks, and the first was a world theme, maybe the second was a battle theme? Or maybe it was all the same song but they just jumped between movements, they do that for trailer sometimes.

I definitely heard Rage Awakened as the glasses came on Sora.

Huh, I heard it too!  It seems we've heard a small snippet of KHIII's soundtrack!  But the question is, to which world will the track belong to?  Ha, and like Jon Snow stated, I too heard Rage Awakened as Sora was putting on the glasses on the Shooter Ride!

I think it was music made up for the TV clip for Japan and nothing more.

First kind of All for one then a bit from Rage awakened.