If you give a description of what you want, we could help you better. Furthermore, Sponge is in development, and the people behind its plugins would probably want to hear what features you want incorporated.
I technically did, but you make a good point. I will make an edit to a few things if that will help. I showed the plugins I wanted for my server to port to Sponge eventually. I may wait until API version 5 and wait for plugins to update to port. My server is not big so it should not be too hard to port unlike some big servers.