Currently theres mostly just community requesting to create communities and community adoption so people can adopt a community if the owners and mods are gone (which I think should just be the way to handle abandoned communities)
For the gamedev community the main gamedev community gets all the gamedev posts while the others are intended to get crossposted into for people who want the separation until we get flairs (but theres been basically no gamedev discussion content in either) (children are news, showcase, discussion, and game design) I can try to get it more active