I started a thread back in the day when I was first experiencing KSP. It was called something like "Should we make a community planets pack?". As far as I remember, there was an overwhelming support for the idea. So I decided, a few months later, that I will install Kopernicus and start the mod. All I need is for you to give me suggestions and fill the poll. I will like to hear your responses!
Also, here is the system that I will make for your planet to be implemented to the mod:
I will make a thread asking the community to send their planets (obviously made with kopernicus)
I will review the planet to make sure no bad stuff is inside it
I will feature the planet in the mod's thread
I will implement the planet into the mod!
I might change it (of course)