This update will be some time tonight or early tomorrow morning so start downloading.
The Latest Files section of the web site will be updated shortly, in the meantime you can start downloading the new files directly from this post:
This one goes in your
haks folder after you extract:
layov2_2da_v15.rar New 2da Hak (1.2MB)
This one goes into your
tlk folder after you extract:
layonara_v9.rar New TLK file (194 KB)
And yes you can download them now and place them into the appropriate directories and it will not affect your game play before the update.