I've been browsing different forums for this answer and the closest answer I could find was a post on this Stack Exchange.
However this post is still a 'may be' it won't work and it targets the general question 'Non Thunderbolt to Thunderbolt ?' which I would understand to be negative.
My question is more on the display side, since the thunderbolt technology carries both a display signal as well a pci express signal, can a non-thunderbolt diplay with a simple display port still carry that signal to a thunderbolt cinema display ?
Thanks for your knowledge on that matter.