Thank you for your interest!
Yes, I have worked on 4 and 5.
4) Investigate mandala morphing and animations.
5) Making a domain specific language of specifications for mandala creation and modification.
Hopefully, I will post the progress/results soon...
I have to say that it was much more important to productize (software-wise) the different ingredients of this post. A list of functions posted at GitHub and Wolfram Function Repository (WFR) follows.