Glad to see people bumping this thread up - I thought I was the only one I cared about stuff like this for Falcom soundtracks.
I also posted a composer breakdown for Nayuta no Kiseki
here, and edited the album notes for
VM Japan with full composer breakdowns (and yes - both *are* confirmed!). All the credit goes to kotorain and his excellent articles on
http://falcombob.blogbus.com and
http://site.douban.com/120173/, which gave me a better knowledge about Falcom; especially about Sound Team jdk and the current sound lead Hayato Sonoda.