I think it probably would have been "momentum" instead of secret, and I think the mini-album would have been called "JEWEL", actually. I think those were the initial plans before ayu decided to make it a full album. (Secret might have been added later as a secret track or bonus track, like Memorial address was, but assuming that one wasn't done yet, I think the songs with PVs are the songs that were finished in time for the mini-album release announcement.)
Ayu's cds tend to clump genres together, so I think the tracklist order as planned by avex would have been more like
1. Beautiful Fighters
2. BLUE BIRD
3. 1 LOVE
4. Startin'
5, Born To Be...
6. momentum
7. JEWEL
(This somewhat mimics the pop-rock-ballads structure "Memorial address" had, now that I look at it.)
This isn't to say I would LIKE that tracklist, though... if it had to be those 7 songs, I think this would have been a better track order:
Born To Be...
Startin'
Beautiful Fighters
1 LOVE
momentum
BLUE BIRD
JEWEL
There are my two cents.
