When I started developing the Irrlicht 3D engine nearly 20 years ago, I always had a public roadmap on the website. Not sure why I didn't make one for the CopperCube 3D game engine as well. So time to change that.
The official CopperCube roadmap
is now available, too. It's still a bit empty, but I guess it will fill more and more during the next months. It only contains the big items (not bug fixes and similar), but if I forgot something very important, please let me know!