For information: Edius 9 has been released. Both Pro and Workgroup versions.
A demo version is available for D/L.
I have not yet tried it.

I have been on edius since version 5 and always upgraded with each new version, this is the first time however that the added features are of no use to me so I won't be upgrading yet, the main focus of 9 is HDR and cloud editing and neither of those interest me so I will wait until more features are added and see when they will benefit my workflow.

For me the question is Edius 9 a good upgrade for those who never installed 8?

The best feature by far for me in edius 8 is the addition of the primary color correction which also allows adding luts.