Just because there's no such thing as over-speculating, here's what I HOPE the album will look like!!
01.
Love song
The most gorgeous ballad ever, on the same level as HANABI or JEWEL!
02.crossroad
03.MOON
04.
sending mail
This is an electro-sounding interlude, starting slow and building into a heavy trance interlude. (sending mail = e-mail or digital messages)
05.Last angel
06.
insomnia
A dark electro song like Last Angel, but then a bit calmer and darker. Resembling GUILTY (the song). Think Dance In The Da- *gets shot*
07.
Like a doll
This is a classic Ayu rock song! Marionette / Is This LOVE? etc.
08.
Aria
An Aria is actually a singing voice supported by an orchestra. But because I think this will be an interlude, the singing will be very limited. Like in Bridge to the sky.
09.blossom
10.
Thank U
MY ALL 2.0
11.Sweet Season
12.
overture
Another sweet sounding interlude, very serene like Labyrinth or a bit darker like Kaleidoscope.
13.
do it again
Ok this title is so bland I can't think of ANYTHING. Leave this one empty, Ayu can choose! 
14.
November
The song resembles the month: Dark, but with a nostalgic undertone because this is the month before the holiday season. The dark days before the bright days. A bit like Carols but a bit darker.
15.Virgin Road
[bonus track]
16.SEVEN DAYS WAR
Gosh I really want this album to be dark, don't I!