Still waiting for a Cubase 9.0 help file since sending us online to an incomplete help file doesn’t help . Still having to use 8.5 help files to find out most things about cubase .
Are you waiting a specific language version?
The English version has been available since release day.
https://www.steinberg.help/ ( english only 
)
direct download: http://download.steinberg.net/downloads_software/Cubase_Pro_9_and_Cubase_Artist_9/Cubase_Pro_Artist_9_PDF_documentation_english.zip
The cubase artist 9 manual is all i can download
surely this omits certain text that would be in full manual?
I get the full Cubase Pro 9 Artist 9 manual from the direct download link.
Check the front cover or the title of the zip file carefully 
oh rite
happy days thanks