Hi everyone here,
I changed school 6 months ago, and I need more time to study, so I haven’t been able to continue this project. And as the current direction of Blender’s node system is on other things, this project is no longer up to date.
I’ll close this thread and archive everything related to this. It was a great learning for me, I’ll keep some ideas in mind for future works. (The work done is still available at Blender Archive - developer.blender.org)
Have a good day 
Colin