Just to let anyone who is insterested know: "Yes, Virginia, We're still working on a Minecraft 1.9 version" (COLOR CUBE II CONFIRMED WOOT WOOT!)
I'm proud to say we've surpassed 11K downloads, just from our own servers. (Other folks have rehosted, so.. no download count details there.)
We've updated COLOR CUBE to work on Minecraft Realms, and you can get a working version of the map through there! Additionally, we're gonna make the latest version of the map (whatever version we're up to lately -- the colors are making me a bit dizzy) available for download from our website.
We've discontinued to play servers, though, sorry. You'll have to make friends to play this game from here on out!