I'd like A Song for XX, LOVEppears and Duty re-released and resung. :p Those would be so wonderful with new arrangements. And they should include all the b-sides that were left out, like ever free, LOVE~destiny (replaces LOVE~refrain~) and two of us. :p Well, I think I'll put a list of the songs I'm really wanting to be resung:
1998-2000 era
A Song for XX
POWDER SNOW
poker face
Trust
Two of us
Fly high
And Then
End roll
P.S.II
WHATEVER
appears
Who...
LOVE~destiny~
immature
Boys & Girls
End of the World
Duty
vogue
Far away
SURREAL
AUDIENCE
Key~eternal tie vers~
ever free
SEASONS
2001-2003
UNITE! (would be creepy with Ayu's voice nowadays)
evolution
NEVER EVER
Naturally
still alone
Dearest
Endless sorrow
Real me
WE WISH
Heartplace
July 1st
Dolls
Voyage
HANABI
Over
RAINBOW
Because of You (I'm sure this would be scary as resung. More like talkin' 2 myself)
forgiveness
HANABI ~episode II~
No way to say
I forgot other songs.

But really, I think those first three albums would be wonderful if re-released with new arrangements and all. Of course, I don't want them to be like GUILTY, but like her music was on 2002-2004. It would be so cool to hear Boys & Girls as a catchy rock pop song (not that I hate the original version, it's awesome, but that's just an example). Of course with LOVEppears I think I'd like it more as a resung album, because I love those original techo/pop/trance versions really much, but A Song for XX and Duty could sound cool with more rock pop sound. :3