Kindo: Since the old link is dead, I took the liberty to re-upload adamhm's extension to the TW2 soundtrack. Here's to hoping no quotas or other annoying limitations will come to bother us.

Download from Dropbox
Download from Sendspace

Original readme is included. All credit goes to adamhm, of course, as this is just a re-upload of his work, although CDPR and the TW2 composers obviously are responsible for the game and the music itself.